Nonvascular plants is a general term for those plant s without a vascular tissue vascular system xylem and phloem . Although nonvascular plants lack these particular tissues, a number of nonvascular plants possess tissues specialized for internal transport of water . Nonvascular plants do not have a wide variety of specialized tissue. Marchantiophyta Liverworts have structures that look like leaf leaves , but they are not true leaves because they have no xylem or phloem . Likewise, mosses and algae have no such tissues. All plants have a life cycle with an alternation of generations between a diploid sporophyte and a haploid gametophyte , but only nonvascular plants can potentially have a dominant gametophyte generation. In these plants, the sporophytes grow from and are dependent on gametophytes for taking in water and other materials. Nonvascular groups The term nonvascularplant is no longer used in scientific nomenclature. Nonvascular plants include two distantly related groups Bryophyte s moss Bryophyta mosses , Marchantiophyta liverworts , and hornwort Anthocerotophyta hornworts . In these groups, the primary plants are the haploid gametophyte s, with the only diploid portion being the attached sporophyte , consisting of a stalk and sporangium . Because these plants lack water conducting tissues, they can t become as tall as most vascularplant s. Alga e especially ..., since it frequently is used to include some Vascular tissue vascular plants, the fern s and fern ally fern allies . In the past, the term nonvascularplant included not only all the alga e, but also ... nonvascular.htm Cartage.org.lb Plant classification Category Nonvascular plants Category Plants af Nie vaatplant ar ca Planta no vascular cs Ni rostliny et Soonteta taimed fr Plante non vasculaire pl Ro liny nienaczyniowe pt Planta avascular simple Nonvascularplant vi Th c v t kh ng ..., and have a very different biology . See also Vascularplant External links http www.cartage.org.lb ... more details
ref See also Fern ally Fern allies Nonvascularplant References Reflist 2 External links http www.smartymaps.com .... issue 5777 ref Recent regnum Plant ae subdivision ranks Divisions subdivision Non seed bearing plants ... through the plant. Vascular plants include the clubmoss es, Equisetum , fern s, gymnosperm s including conifer s and angiosperms flowering plant s . Scientific names for the group include Tracheophyta ... are haploid . By contrast, the principal generation phase in nonvascular plants is usually ... format PDF journal Phytotaxa volume 19 pages 7 54 ref vascularplant phylogeny This phylogeny is supported ...Taxobox name Vascular Plants image PinusSylvestris.jpg fossil range Mid Silurian ref name Edwards1980 ... Spermatophyta Pteridospermatophyta Pinophyta Cycad ophyta Ginkgophyta Gnetophyta Flowering plant Magnoliophyta Vascular plants also known as tracheophytes or higher plants are those plants that have lignin ... Report Page Tracheobionta Bot generated title ref Characteristics Vascular plants are distinguished by two primary characteristics Vascular plants have vascular tissue s which circulate resources through the plant. This feature allows vascular plants to evolve to a larger size than nonvascularplant s, which lack these specialized conducting tissues and are therefore restricted to relatively small sizes. In vascular plants, the principal alternation of generations generation phase is the sporophyte ... from the roots, while phloem carries organic solutes throughout the plant. Phylogeny A proposed phylogeny of the vascular plants after Kenrick and Crane ref Kenrick, Paul & Peter R. Crane. 1997. The Origin ... of Euphyllophytes? journal International Journal of Plant Sciences volume 167 issue 3 pages 737 ... in the plant through the xylem and phloem. The xylem draws water and nutrients up from the roots to the upper sections of the plant s body, and the phloem conducts other materials, such as the sucrose produced during photosynthesis , which gives the plant energy to keep growing and seeding. The xylem ... more details
Parent page Flora of Canada This is a listing of the nonvascularplant s of Canada , and includes the moss es, Marchantiophyta liverworts and hornwort s. bgcolor green align center Secure bgcolor lime align center Apparently br secure bgcolor yellow align center Vulnerable bgcolor orange align center Imperiled bgcolor red align center Critically br imperiled bgcolor silver align center Not br assessed bgcolor cyan align center Historical bgcolor blue align center Extirpated bgcolor fuchsia align center Introduced IDD incomplete distribution data Hornwort Anthocerotophyta hornworts Anthocerotaceae border 1 rowspan 3 bgcolor silver Binomial nomenclature Species name colspan 10 bgcolor silver Range in Canada rowspan 3 bgcolor silver Global br rank rowspan 3 bgcolor silver Notes bgcolor silver Yukon YK colspan 3 bgcolor silver Northwest Territories NT colspan 3 bgcolor silver Nunavut NU bgcolor silver Labrador LB colspan 2 bgcolor silver Canada CA bgcolor silver British Columbia BC bgcolor silver Alberta AB bgcolor silver Saskatchewan SK bgcolor silver Manitoba MB bgcolor silver Ontario ON bgcolor silver Quebec QC bgcolor silver New Brunswick NB bgcolor silver Prince Edward Island PE bgcolor silver Nova Scotia NS bgcolor silver Newfoundland and Labrador NL rowspan 2 Anthoceros fusiformis YK colspan 3 align center NT colspan 3 align center NU LB colspan 2 align center bgcolor gray CA rowspan 2 align center bgcolor yellow Vulnerable rowspan 2 IDD bgcolor gray BC AB SK MB ON QC NB PE NS NF rowspan 2 Anthoceros macounii YK colspan 3 align center NT colspan 3 align center NU LB colspan 2 align center bgcolor gray CA rowspan 2 align center bgcolor yellow Vulnerable rowspan 2 IDD BC AB SK MB bgcolor red ON bgcolor gray QC NB PE bgcolor gray NS NF Notothyladaceae border 1 rowspan 3 ... bgcolor red NB PE bgcolor orange NS bgcolor orange NF DEFAULTSORT Nonvascular Category Lists of plants Category Nonvascular plants Category Flora of Canada ... more details
Vascular in zoology and medicine means related to blood vessel s , which are part of the circulatory system . Its origin is in the Latin word vasculum , meaning little vessel ref http www.thefreedictionary.com vascular ref . The vascular system is a network of blood vessels arteries , veins and capillaries , that carry blood to organs around the body. An organ or tissue that is vascularized is heavily endowed with blood vessels and thus richly supplied with blood . In botany , plant s with a dedicated vascular tissue transport system for water and nutrients are called vascularplant s. Vascular plants include fern s, conifer s and angiosperm flowering plants . A vascular bundle is part of such a transport system. See also Vascular diseases Vascular headache Vascular surgery Vascular tissue References Reflist Medicine stub Biology stub Category Medical terms ... more details
250px Detail of the vasculature of a bramble leaf . This is an article about vascular tissue in plants. For transport in animals, see Circulatory system . Vascular tissue is a complex conducting tissue biology tissue , formed of more than one cell type, found in vascularplant s. The primary components of vascular tissue are the xylem and phloem . These two tissues transport fluid and nutrients internally. There are also two meristem s associated with vascular tissue the vascular cambium and the cork cambium . All the vascular tissues within a particular plant together constitute the vascular tissue system of that plant. The cells in differentiated vascular tissue are typically long and slender ... increases the girth of the plant, rather than its length. As long as the vascular cambium continues to produce new cells, the plant will continue to grow more stout. In tree s and other plants that develop wood , the vascular cambium allows the expansion of vascular tissue that produces woody growth ... date August 2011 See also Xylem Phloem Cork cambium Vascular cambium Vascularplant Stele biology External ...Image Celery cross section.jpg thumb right 250px Cross section of celery stalk, showing vascular bundles ... the plant, it is not surprising that their form should be similar to pipes. The individual cells of phloem are connected end to end, just as the sections of a pipe might be. As the plant grows, new vascular tissue cellular differentiation differentiates in the growing tips of the plant. The new tissue is aligned with existing vascular tissue, maintaining its connection throughout the plant. The vascular tissue in plants is arranged in long, discrete strands called vascular bundles . These bundles include both xylem and phloem, as well as supporting and protective cells. In plant stem stems ... from the xylem as well. Between the xylem and phloem is a meristem called the vascular cambium . This tissue ... cork cells to protect the surface of the plant and reduce water loss. Both the production of wood and the production ... more details
produces cork, part of the bark . Together, the secondary vascular tissues produced by the vascular cambium and periderm formed by the cork cambium makes up the secondary plant body . Vascular cambia ... up the secondary vascular tissues , secondary xylem and the secondary phloem . The vascular cambium is a lateral meristem in the vascular tissue of plants. The vascular cambium is the source of both ... between these tissues in the stem and root. A few leaf types also have a vascular cambium. ref Ewers ... 9122 198211 2F12 69 3A10 3C1552 3ASGINLO 3E2.0.CO 3B2 K ref Origin Vascular cambium arises from the primary .... Upon maturity, this region known as the fascicular cambium, and the area of cells between the vascular ... xylem and primary phloem. The vascular cambium then produces secondary xylem on the inside of the ring, and secondary phloem on the outside, pushing the primary xylem and phloem apart. The vascular ... ly oriented Ray initials almost isodiametric cells smaller and round to angular in shape The vascular ... cell s from which other more differentiated plant tissues originate. Primary meristems are the apical ... grafting , the vascular cambia of the stock and scion must be aligned so they can grow together ... vascularcambium.htm Vascular cambium http www.sbs.utexas.edu mauseth weblab webchap3par 3.2 5.htm Detailed description James D. Mauseth Review Risopatron JPM, Sun YQ, Jones BJ 2010 The vascular cambium ... z http www.ncbi.nlm.nih.gov pubmed 20978810 Category Plant physiology Category Plant anatomy Category Plant cells ca C mbium cs Kambium da Inderbark de Kambium et Kambium es C mbium eo Kambiumo fr Cambium ... vascular ru simple Vascular cambium sr fi J lsi sv Kambium th uk ... more details
Image Celery cross section.jpg thumb Cross section of celery stalk, showing vascular bundles, which include both phloem and xylem A vascular bundle is a part of the transport system in vascularplant s. The transport itself happens in vascular tissue , which exists in two forms xylem and phloem . Both these tissues are present in a vascular bundle, which in addition will include supporting and protective tissues. Also, it is a vein in the leaf that contains conducting tissues. The xylem typically lies wiktionary adaxial adaxial with phloem positioned wiktionary abaxial abaxial . In a stem or root this means that the xylem is closer to the centre of the stem or root while the phloem is closer to the exterior. In a leaf, the adaxial surface of the leaf will usually be the upper side, with the abaxial surface the lower side. This is why aphid s are typically found on the underside of a leaf rather than on the top, since the sugars manufactured by the plant are transported by the phloem, which is closer to the lower surface. The position of vascular bundles relative to each other may vary considerably see Stele biology stele . Bundle sheath cells Bundle sheath cells are photosynthetic cells arranged into tightly packed sheaths around the veins of a leaf. They form a protective covering on leaf veins, and consist of one or more cell layers, usually parenchyma . Loosely arranged mesophyll cells lie between the bundle sheath and the leaf surface. The Calvin cycle is confined to the chloroplasts of these bundle sheath cells in C4 carbon fixation C4 plants . External links Vascular bundles pictured in cross section, by http botweb.uwsp.edu anatomy primaryxylem.htm Curtis, Lersten, and Nowak and http www.sbs.utexas.edu mauseth weblab webchap8phloem chapter 8.htm Mauseth References .... Category Plant anatomy Category Plant physiology Category Tissues cs C vn svazek de Leitb ndel es Haz vascular id Jaringan pengangkut hu Ed nynyal b nl Vaatbundel pl Wi zki przewodz ce ... more details
in intact skeletal muscle in response to regular exercise or insulin is unknown, because non invasive measurement techniques are not yet extremely precise. ref Non invasive study of pulmonary vascular ...Vascular recruitment is the increase in the number of perfused capillaries in response to a stimulus. I.e., the more you exercise regularly, the more oxygen can reach your muscles. Synonym Vascular recruitment may also be called capillary recruitment . Vascular recruitment in skeletal muscle The term vascular recruitment or capillary recruitment usually refers to the increase in the number perfused capillaries in skeletal muscle in response to a stimulus. The most important stimulus in humans is regular exercise . ref Vascular recruitment in forearm muscles during exercise. Palm T, Nielsen SL, Lassen ... 238 1 H31 42. ref Vascular recruitment in skeletal muscle is thought to enhance the capillary surface ... can act as a stimulus for vascular recruitment in skeletal muscle. This process may also improve ... volume which occurred after hyperinsulinemia . ref Vascular recruitment in skeletal muscle during exercise ... 173 8. French. ref Being overweight or obese may negatively interfere with vascular recruitment in skeletal ... Vascular recruitment in the lung Vascular recruitment in the lung i.e., in the pulmonary microcirculation ... it may increase evidence of lung injury, ref Vascular recruitment increases evidence of lung injury ... 27 1 120 9. ref and increase pulmonary capillary protein leak. ref Effects of pulmonary vascular recruitment ... AM, Hirsch JI, Greenfield LJ. Surgery. 1981 Aug 90 2 388 95. ref Vascular recruitment in the brain Vascular recruitment in the brain is thought to lead to new capillaries and increase the cerebral blood ... 1 5 11. ref ref Evidence that heterogeneity of cerebral blood flow does not involve vascular recruitment ... of vascular recruitment in response to a stimulus has been disputed by some researchers. ref ... that vascular recruitment exists. ref Point There is capillary recruitment in active skeletal muscle ... more details
A vascular anomaly is a kind of birthmark caused by a disorder of the vascular development, although it is not always present at birth. A vascular anomaly is a localized defect in blood vessels that can ... enlarged and sinuous. Some vascular anomalies are congenital and therefore present at birth, others ... vascular anomalies are also described and often present with a number of lesions that increase with patients age. Vascular anomalies can also be a part of a syndrome and, occasionally, they can be acquired by trauma. The estimated prevalence of vascular anomalies is 4.5 . ref name Greene overview cite journal last Greene first AK title Vascular anomalies current overview of the field. journal Clinics in plastic surgery date 2011 Jan volume 38 issue 1 pages 1 5 pmid 21095467 ref Vascular ... vascular anomalies are localized in the head and neck region. ref name Ernemann cite journal last ..., Hoffmann, J title Current concepts in the classification, diagnosis and treatment of vascular anomalies ... ref Vascular anomalies can present in various ways. Vascular anomalies that are situated deep below the skin, appear blue and are often called cavernous. Superfiscial vascular anomalies appear as red coloured stains and are associated with vascular anomalies affecting the dermis. Historically, vascular ... vascular anomalies. ref name Hassanein cite journal last Hassanein first AH coauthors Mulliken, JB, Fishman, SJ, Greene, AK title Evaluation of terminology for vascular anomalies in current literature ... terms and gave direction to the management of various vascular anomalies. This classification, based on clinical features, natural history and cellular characteristics, divides vascular anomalies into two groups vascular tumors and vascular malformations. ref name Mulliken cite journal last Mulliken first JB coauthors Glowacki, J title Hemangiomas and vascular malformations in infants and children ... the appearance of both vascular tumors and vascular malformations can resemble, there are important ... more details
clinics is the treatment of varicose veins by nonvascular surgeons e.g. cosmetic physicians ...Infobox Occupation name Vascular Surgeon image caption official names Doctor, Medical Specialist Details ... Vascular surgery is a specialty of surgery in which diseases of the vascular system, or artery ... advanced training in vascular surgery and pushed for its recognition as a specialty in the United States in the 1970s. The vascular surgeon is trained in the diagnosis and management of diseases affecting all parts of the vascular system except that of the heart and brain. Cardiothoracic surgery Cardiothoracic ... File The Principle Organs and Vascular and Urino Genital Systems of a Woman.jpg thumb right Medical ... organs and vascular systems of a woman. The specialty continues to be based on operative arterial ... development of the field has occurred via joint efforts between interventional radiology , vascular surgery, and interventional cardiology. This area of vascular surgery is called Endovascular Surgery or Interventional Vascular Radiology, a term that some in the specialty append to their primary qualification as Vascular Surgeon. Endovascular and endovenous procedures can now form the bulk of a vascular ... separation of vascular surgery from its origin in general surgery. Most vascular surgeons would now confine their practice to vascular surgery and similarly general surgeons would not be trained or practice the larger vascular surgery operations or most endovascular procedures. More recently, professional vascular surgery societies and their training programme have formally separated Vascular ... societies are Society of Vascular Surgery SVS , USA Australia and New Zealand Society of Vascular Surgeons ANZ SVS . Local societies also exist e.g. Melbourne Society of Vascular Surgeons MVSA . Larger ... areas of interest and operative surgical practice for vascular surgeons are access surgery for hemodialysis ... solid organ transplantation Organ transplant . Vascular surgeons will frequently have close associations ... more details
Infobox Disease Name Vascular malformation Image Caption DiseasesDB ICD10 ICD9 ICDO OMIM MedlinePlus eMedicineSubj eMedicineTopic MeshID D054079 Vascular malformation is a term used to refer to blood vessel abnormalities. Vascular malformations and vascular tumors both belong to vascular anomalies There are many types, but the most common is arteriovenous malformation . ref name urlVascular Malformations of the CNS cite web url http rad.usuhs.mil rad home vascmalf malf0.html title Vascular Malformations of the CNS work accessdate ref See also Vascular disease Vascular anomaly References reflist Vascular diseases Congenital vascular defects Category Vascular diseases disease stub de Gef malformation ja ... more details
Interventions infobox Name Vascular grafting Image Caption ICD10 ICD9 ICD9proc 39.2 MeshID D058017 OPS301 OtherCodes HCPCSlevel2 Vascular grafting is the use of transplanted or prosthetic blood vessels in surgical procedures. PTFE and Dacron are some of the most commonly used grafts. Grafts can be used for the aorta , femoral artery or in the forearm. Coronary artery bypass graft is used for people with occluded coronary arteries , and often the saphenous vein or left internal thoracic artery are used in this procedure. See also Human umbilical vein graft Blalock Taussig shunt Vascular procedures Organ transplantation surgery stub Category Transplantation medicine Category Vascular surgery ... more details
Orphan date February 2009 Vascular nerves nervi vasorum or nervi vascularorum are the nerves which innervate arteries and veins . Nerves that control vasodilation and vasoconstriction, which in turn lead to the control and regulation of temperature and homeostasis. External links eMedicineDictionary vascular nerves DorlandsDict six 000071249 Vascular nerves Category Nerves circulatory stub neuroanatomy stub ... more details
Infobox Anatomy Name PAGENAME Latin GraySubject GrayPage Image Gray1130.svg Caption Glomerulus. Vascular pole not labeled, but visible at bottom. Image2 Corpuscule malpighi.JPG Caption2 Precursor System Artery Vein Nerve Lymph MeshName MeshNumber DorlandsPre p 26 DorlandsSuf 13491188 The vascular pole is a location of the glomerulus . At the vascular pole, the afferent arterioles and efferent arterioles enter the Bowman s capsule . The urinary pole is at the other end. External links UIUCHistologySubject 1398 genitourinary stub Category Urinary system ... more details
Infobox disease Name Vascular headache Image Caption DiseasesDB 6972 ICD10 ICD10 G 44 1 g 40 ICD9 ICD9 784.0 ICDO OMIM MedlinePlus eMedicineSubj eMedicineTopic MeshID D014653 A vascular headache is an outdated term to describe certain types of headache which were thought to be related to blood vessel swelling and hyperemia as cause of the pain . There is no doubt that some headaches are caused by vascular effects. However, it is no longer a recognized term and not mentioned in the Headache classification of the International Headache society IHS , ref name pmid3048700 cite journal author title Classification and diagnostic criteria for headache disorders, cranial neuralgias and facial pain. Headache Classification Committee of the International Headache Society journal Cephalalgia volume 8 Suppl 7 issue pages 1 96 year 1988 pmid 3048700 doi url http www3.interscience.wiley.com resolve openurl?genre article&sid nlm pubmed&issn 0333 1024&date 1988&volume 8&issue &spage 1 ref although it is still used by some physicians and still mentioned in some medical classification systems. Headaches that were described as being vascular headaches include Cluster headache Migraine Toxic headache References reflist Diseases of the nervous system Headache DEFAULTSORT Vascular Headache Category Headaches Medical stub ca Cefal lgia vascular ... more details
Unreferenced date July 2009 Vascular congestion is the engorgement of an entity, such as the blood vessel s of the erectile tissue s, with blood . It is known to occur with deep venous thrombosis DVT . Category Angiology med sign stub ... more details
Infobox disease Name Vascular disease Image andrew Caption DiseasesDB ICD10 ICD10 G 45 g 40 ICD10 G 46 g 40 , ICD10 I 60 i 60 ICD10 I 95 i 95 ICD9 ICD9 325 , ICD9 430 ICD9 459 ICDO OMIM MedlinePlus eMedicineSubj eMedicineTopic MeshID D014652 Vascular disease is a form of cardiovascular disease primarily affecting the blood vessels . Some conditions, such as angina and myocardial ischemia , can be considered both vascular diseases and heart disease s. ref http www.bhf.org.uk heart health conditions cardiovascular disease.aspx ref Cigarette smoking is the major risk factor . ref name urlWhat is Vascular Disease? Cite web url http www.healthsystem.virginia.edu internet vascular whatis.cfm title What is Vascular Disease? format work accessdate ref Background Vascular disease is a pathological state ... strokes . Diagnosis It can be very difficult to make a vascular disease diagnosis as there are a wide variety of symptoms that a person can carry. ref http www.vasculardiseasediagnosis.com Vascular Disease diagnosis 2010 02 12 ref Vascular diagnosis is primarily made upon the symptoms, family history ... exam may be slightly different depending on the type of vascular disease that is suspected. In the case of a peripheral vascular disease the physical exam consists in checking the blood flow in the legs .... ref University of Maryland medical center. http www.umm.edu features vascular disease.htm Vascular ... disease and peripheral vascular disease . It utilizes high frequency sound waves that are being ... Heart Association. Retrieved on 2010 02 12 ref Upon suspicion of peripheral vascular disease , the first ... vascular disease is not present. If the value of the ABPI is lower than 0.8, the peripheral vascular disease exists but it is normally a mild case. On the other hand, a value below 0.5 is the proof of a serious vascular condition. References Reflist Medical conditions CNS diseases of the nervous system Vascular diseases Category Vascular diseases ja ... more details
Vascular tumor may mean tumor of vascular origin , a growth Benign tumor benign or malignant formed from blood vessel s for example, hemangioma , Lymphangioma , hemangioendothelioma , Kaposi sarcoma , angiosarcoma , etc. a highly vascularized tumor or poorly vascularized tumor , referring to the degree of adequate or inadequate ischemic blood supply to a tumor formed from any biological tissue disambig ... more details
Vascular resistance is a term used to define the resistance to flow that must be overcome to push blood ... vascular resistance SVR , while the resistance offered by the vasculature of the lungs is known as the pulmonary vascular resistance PVR . The systemic vascular resistance may also be referred ... increases SVR, whereas vasodilation increase in diameter decreases SVR. Units for measuring vascular ... Systemic vascular resistance 700&ndash 1600 ref name WashingtonSurgery2008 Table 30 1 in cite book author ... name dyn Pulmonary vascular resistance 20&ndash 130 ref name WashingtonSurgery2008 2&ndash 13 ref name ... is that flow is equal to driving pressure divided by resistance. The systemic vascular resistance ... blood pressure plus 1 3 of systolic blood pressure. The pulmonary vascular resistance can therefore ... P Q math where R is the pulmonary vascular resistance fluid resistance , P is the pressure difference ..., and Peripheral vascular resistance 93 3 5 18 Wood Units. or Peripheral vascular resistance 18 x 80 1440 dyn s cm5 These values are in the normal limits. Determinants of vascular resistance The major determinant of vascular resistance is small arteriolar known as resistance arteriole s tone. These vessels ... is about 3 to 4 m. Another determinant of vascular resistance is the pre capillary ... vascular resistance. Regulation of vascular resistance There are many factors that alter the vascular ... a role in maintaining the vascular resistance in the resting state. However, it causes vasodilation and decreased vascular resistance during hypoxia. Adenosine is formed in the myocardial cells during ... vasodilator on the vascular wall. Because adenosine acts as a direct vasodilator, it is not dependent ... wall. Coronary vascular resistance The regulation of tone in the coronary arteries is a complex subject. There are a number of mechanisms for regulating coronary vascular tone, including metabolic ... booktine.com systemic vascularresistance Heart information Systemic vascular resistance See also Adenosine ... more details
Infobox disease Name Vascular ring Image Caption DiseasesDB ICD10 ICD10 Q 25 4 q 20 ICD9 ICD9 747.21 ICDO OMIM MedlinePlus eMedicineSubj med eMedicineTopic 2981 MeshID A vascular ring is a congenital defect in which there is an abnormal formation of the aorta and or its surrounding blood vessel s. The Vertebrate trachea trachea and esophagus are completely encircled and sometimes compressed by a ring formed by these vessels, which can lead to breathing and digestive difficulties. Most often this is because of persistence of the double aortic arch after the second month of fetal life. Presentation The two arches surround the esophagus and trachea which, if sufficiently constrictive, may cause breathing or swallowing difficulties despite medical therapies. A less common ring is present with a right aortic arch instead of the usual left sided aortic arch. This compresses the esophagus and trachea because of the persistence of a ductal ligament from fetal circulation that may connect between the aorta on the front and the left subclavian artery posteriorly going to the left arm. Treatment It is sometimes treated with surgery. ref name pmid12677561 Cite journal author Bonnard A, Auber F, Fourcade L, Marchac V, Emond S, R villon Y title Vascular ring abnormalities a retrospective study of 62 cases journal J. Pediatr. Surg. volume 38 issue 4 pages 539 43 year 2003 month April pmid 12677561 doi 10.1053 jpsu.2003.50117 url http linkinghub.elsevier.com retrieve pii S0022346802631264 ref References Reflist Congenital vascular defects Disease stub Category Congenital vascular defects ... more details
Vascular occlusion is a sudden blockage of a blood vessel, usually with a blood clot clot . It differs from thrombosis in that it can be used to describe any form of blockage, not just one formed by a clot. When it occurs in a major vein , it can, in some cases, cause deep vein thrombosis . The condition is also relatively common in the retina , and can cause partial or total loss of vision. An occlusion can often be diagnosed using Medical ultrasonography Doppler sonography Doppler sonography a form of Medical ultrasonography ultrasound . ref cite book title Vascular diagnosis with ultrasound clinical reference with case studies last first authorlink coauthors Michael Hennerici and Doris Neuerburg Heusler year 2005 publisher Thieme Publishing Group location isbn 978 3131038326 page 303 pages url accessdate ref ref cite web url http www.focusonretina.com occlusns.htm title What are Retinal Vascular Occlusions? author Edward J. Goldman date 2004 work publisher The Retina Centre accessdate 31 January 2010 ref Some medical procedures involve occluding a blood vessel to treat a particular condition. This can be to reduce pressure on aneurysm s weakened blood vessels or to restrict a haemorrhage . It can also be used to reduce blood supply to tumours or growths in the body, and therefore restrict their development. Occlusion can be carried out using a Ligature medicine ligature by implanting small coils which stimulate the formation of clots or, particularly in the case of cerebral aneurysm s, by Clipping medicine clipping . ref cite web url http www.amplatzer.com KurtAmplatzCenterforEducation tabid 171 default.aspx title Understanding Vascular Occlusion author date work publisher AGA Medical Corporation accessdate 31 January 2010 ref ref cite journal last1 Jabre first1 A. last2 Symon first2 L. year 1987 title Temporary vascular occlusion during aneurysm surgery. journal Surgical Neurology volume issue pages url doi ref References reflist medicine stub Category Medical terms ... more details
Vascular permeability , often in the form of capillary permeability , characterizes the capacity of a blood vessel wall to allow for the flow of small molecules ions, water, nutrients or even whole cells lymphocyte s on their way to the site of inflammation in and out of the vessel. Blood vessel walls are lined by a single layer of endothelial cells. The gaps between endothelial cells cell junction s are strictly regulated depending on the type and physiological state of the tissue. An example of increased vascular permeability is in the Periodontal disease Initial lesion initial lesion of periodontal disease , in which the plexus Circulatory system gingival plexus becomes engorged and Vasodilation dilated , allowing large numbers of neutrophil s to leukocyte extravasation extravasate and appear within the junctional epithelium and underlying connective tissue . ref name P&S Page, RC Schroeder, HE. Pathogenesis of Inflammatory Periodontal Disease A Summary of Current Work. Lab Invest 1976 34 3 235 249 ref References Reflist External links MeshName Vascular Permeability Category Cardiovascular physiology med stub sr ... more details
Unreferenced date July 2009 The vascular lacuna Latin lacuna vasorum is the medial compartment beneath the inguinal ligament , for the passage to the femoral vessels , lymph node, and femoral branch of the genitofemoral nerve . Medial to lateral these are the Rosenmuller lymph node, femoral vein, femoral artery, and gem oral branch of genitofemoral nerve. It is separated from the muscular lacuna by the iliopectineal arch . It s boundaries are therefore the iliopectineal arch, the inguinal ligament, lacunar ligament and superior border of the pubis. The lacunar ligament can be a site of entrapment for femoral hernias. ref Ross, L.M., Lamperti, E.D. 2006 . Thieme Atlas of Anatomy 489 ref References references DEFAULTSORT Vascular Lacuna Category Muscular system anatomy stub de Lacuna musculorum et vasorum sv Lacuna vasorum ... more details
Infobox Album See Wikipedia WikiProject Albums Name Cardio Vascular Type studio Artist Youves Cover Youves album cover.jpg Released 4 May 2009 Genre Dance Punk br New Rave Length 23 46 Label Holy Roar Records Producer Nick Kinnish Cardio Vascular is an E.P by British Dance Punk band Youves . It was released in the spring of 2009 through Holy Roar Records . The album mostly features newly written material Which was written between 2008 and 2009 as the band was going through a member change and a name change, this being their first release under the name Youves . The album has been released on compact disc and digital download. Track listing Fully Erect Serve and Protect Aladdins Rave Bigorexic Another Djemba Djemba Superstitious My High Horse Is a Penny Farthing On Probation Personnel Stephen Broadley Lead Vocals Alex Wiezak Guitar and Backing Vocals Michael King Guitar and Backing Vocals Luke Neale Bass guitar Paul Wechter Drums References references Category 2009 albums ... more details
Infobox Disease Name Vascular myelopathy Image Caption DiseasesDB ICD10 ICD10 G 95 1 g 90 ICD9 ICD9 336.1 ICDO OMIM MedlinePlus eMedicineSubj eMedicineTopic MeshID Vascular myelopathy vascular disease of the spinal cord refers to an abnormality of the spinal cord in regards to its blood supply . ref name caragine cite journal author Caragine LP, Halbach VV, Ng PP, Dowd CF title Vascular myelopathies vascular malformations of the spinal cord presentation and endovascular surgical management journal Semin Neurol volume 22 issue 2 pages 123 32 year 2002 month June pmid 12524557 doi 10.1055 s 2002 36535 url http www.thieme connect.com DOI DOI?10.1055 s 2002 36535 accessdate 2008 06 15 ref The blood supply is complicated and supplied by two major vessel groups the posterior spinal arteries and the anterior spinal arteries of which the Artery of Adamkiewicz is the largest. ref name milen cite journal author Milen MT, Bloom DA, Culligan J, Murasko K title Albert Adamkiewicz 1850 1921 his artery and its significance for the retroperitoneal surgeon journal World journal of urology volume 17 issue 3 pages 168 70 year 1999 pmid 10418091 doi 10.1007 s003450050126 ref Both the posterior and anterior spinal arteries run the entire length of the spinal cord and receive anastomotic conjoined vessels in many places. The anterior spinal artery has a less efficient supply of blood and is therefore more susceptible to vascular disease. Whilst atherosclerosis of spinal arteries is rare, necrosis death of tissue in the anterior artery can be caused by disease in vessels originating from the segmental arteries such as atheroma arterial wall swelling or aortic dissection a tear in the aorta . ref name N&NI cite book title Neurology and Neurosurgery Illustrated last Lindsay first Kenneth W coauthors Ian Bone, Robin Callander, J. van Gijn year 1991 publisher Churchill Livingstone location United ... reflist 2 See also Foix Alajouanine syndrome Chronic cerebrospinal venous insufficiency Peripheral vascular ... more details
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