Infobox Bone Name Humerus Latin GraySubject 51 GrayPage 209 Image Illu upper extremity.jpg Caption Upper extremity Image2 HumerusFront.png Caption2 Articulations MeshName Humerus MeshNumber A02.835.232.087.090.400 DorlandsPre DorlandsSuf The humerus ME from Latin humerus, umerus upper arm, shoulder Gothic ... and ulna , and consists of three sections. The upper extremity of humerus upper extremity consists .... Its body of humerus body is cylindrical in its upper portion, and more prism geometry prism atic below. The lower extremity of humerus lower extremity consists of 2 epicondyle s, 2 processes trochlea of the humerus trochlea & capitulum of the humerus capitulum , and 3 fossae radial fossa , coronoid ... and lesser tubercles of the humerus is referred to as its Surgical neck of the humerus surgical ... attached to the humerus The deltoid muscle deltoid originates on the lateral third of the clavicle ... tuberosity of the humerus and has several actions including abduction, extension, and circumduction ... tubercle of the humerus, and assists in abduction of the shoulder. The pectoralis major , teres major , and latissimus dorsi insert at the intertubercular groove of the humerus. They work to adduct and medially, or internally, rotate the humerus. The infraspinatus and teres minor insert on the greater tubercle, and work to laterally, or externally, rotate the humerus. In contrast, the subscapularis muscle inserts onto the lesser tubercle and works to medially, or internally, rotate the humerus ... act to flex the elbow. The biceps, however, does not attach to the humerus. The triceps brachii and anconeus extend the elbow, and attach to the posterior side of the humerus. The four muscles ... pushing. File Superior epiphysis.jpg thumb left 400px Humerus superior epiphysis File Inferior epiphysis of humerus.jpg thumb left 400px Humerus inferior epiphysis Articulations At the shoulder, the head of the humerus articulates with the glenoid fossa of the scapula . More distally, at the elbow, the capitulum ... more details
Neck of the humerus can refer to Surgical neck of the humerus Anatomical neck of humerus disambig Long comment to avoid being listed on short pages ... more details
Infobox Disease Name PAGENAME Image Communitive midshaft humeral fracture callus.jpg Caption Comminuted midshaft humerus fracture with callus formation. DiseasesDB ICD10 ICD10 S 42 2 s 40 ICD10 S 42 4 s 40 ICD9 ICD9 812 ICDO OMIM MedlinePlus eMedicineSubj emerg eMedicineTopic 199 eMedicine mult eMedicine2 orthoped 271 eMedicine2 orthoped 199 MeshID A humerus fracture can be classified by the location of the humerus involved the upper end, the shaft, or the lower end. Certain lesions are commonly associated with fracture s to specific areas of the humerus. At the upper end, the surgical neck of the humerus ref cite web url http www.wheelessonline.com ortho surgical neck fractures of the humerus title Surgical Neck Fractures of the Humerus Wheeless Textbook of Orthopaedics accessdate 2007 08 16 format work ref and anatomical neck of humerus ref cite web url http www.wheelessonline.com ortho anatomic neck fracture of humerus title Anatomic Neck Fracture of Humerus Wheeless Textbook of Orthopaedics accessdate 2007 08 16 format work ref can both be involved, though fractures of the surgical neck are more common. The axillary nerve can be damaged in fractures of this type. Mid shaft fractures may damage the radial nerve , which traverses the lateral aspect of the humerus closely associated with the radial groove . The median nerve is vulnerable to damage in the supracondylar area, and the ulnar nerve is vulnerable near the medial epicondyle of the humerus medial epicondyle , around which it curves to enter the forearm. gallery File GreatertrochanerAP.png A fracture of the greater tuberosity as seen on AP X ray File GreatertrochanerY.png A fracture of the greater tuberosity of the humerus File FractureTrochanter.png Fracture of the greater tuberosity of the humerus File Proxhumerousfrac.png Proximal humerus fracture gallery See also Supracondylar fracture Holstein Lewis fracture References references External links http www.patient.co.uk showdoc 40024961 Fractures Category ... more details
Infobox Bone Name Capitulum of the humerus Latin capitulum humeri GraySubject 51 GrayPage 212 Image Capitulumhumeri.PNG Caption Left humerus. Anterior view. Capitulum visible at bottom right. Image2 HumerusFront.png Caption2 System appendicular skeleton Precursor MeshName MeshNumber DorlandsPre c 06 DorlandsSuf 12210703 In human anatomy of the arm, the lateral portion of the articular surface of the humerus consists of a smooth, rounded eminence, named the capitulum of the humerus . It articulates with the cupshaped depression on the head of the radius , and is limited to the front and lower part of the bone. In bird s, where forelimb anatomy has adaptation biology adaptation for flight, its functional if not Verify source date August 2007 ontogenetic equivalent is the dorsal condyle of the humerus . Additional images gallery Image Human arm bones diagram.svg Human arm bones diagram gallery External links SUNYAnatomyFigs 07 02 05 BiowebUW APLab Table of Contents Lab 04 Humerus 1 Humerus 1c humerus 1c.html aplab eMedicineDictionary capitulum of humerus Gray s Bones of upper extremity musculoskeletal stub hu Capitulum humeri ro Capitulum th ... more details
Infobox Bone Name Trochlea of humerus Latin GraySubject 51 GrayPage 212 Image Trochleahumeri.png Caption Left humerus . Posterior view. Trochlea visible near bottom. Image2 HumerusFront.png Caption2 Width 125 System MeshName MeshNumber The medial portion of the articular surface of the humerus is named the trochlea , and presents a deep depression between two well marked borders it is convex from before backward, concave from side to side, and occupies the anterior, lower, and posterior parts of the extremity. It is directly inferior to the most prominent anterior humeral fossia, the Coronoid fossia. It articulates with the ulna . External links SUNYAnatomyFigs 07 02 04 Gray s Bones of upper extremity Category Bones of the upper limb musculoskeletal stub gl Tr clea umeral hu Trochlea humeri ro Trohleea humerusului th ... more details
Unreferenced date December 2009 Image Gray210.png thumb Figure 4 Plan of ossification of the humerus. Image Gray211.png thumb Figure 5 Epiphysial lines of humerus in a young adult. Anterior aspect. The lines of attachment of the articular capsules are in blue. The humerus is ossified from eight centers, one for each of the following parts the body, the head, the greater tubercle, the lesser tubercle, the capitulum, the trochlea, and one for each epicondyle. One primary and seven secondary centres . The center for the body appears near the middle of the diaphysis in the eighth week of fetal life, and soon extends toward the extremities. This is the primary centre At birth the humerus is ossified in nearly its whole length, only the extremities remaining cartilaginous. During the first year, sometimes before birth, ossification commences in the head of the bone, and during the second year the center for the greater tubercle, and during the fifth that for the lesser tubercle, make their appearance. By the sixth year the centers for the head and tubercles have joined, so as to form a single large epiphysis, which fuses with the body about the twentieth year. The lower end of the humerus is ossified as follows. At the end of the second year ossification begins in the capitulum, and extends medialward, to form the chief part of the articular end of the bone the center for the medial part of the trochlea appears about the age of twelve. Ossification begins in the medial epicondyle about the fifth year, and in the lateral about the thirteenth or fourteenth year. About the sixteenth or seventeenth year, the lateral epicondyle and both portions of the articulating surface, having already joined, unite with the body, and at the eighteenth year the medial epicondyle becomes joined to it. Ossification DEFAULTSORT Ossification Of Humerus Category Skeletal disorders ... more details
Infobox Bone Name Body of humerus Latin corpus humeri GraySubject 51 GrayPage 209 Image Gray207.png Caption Left humerus . Anterior view. Image2 Gray208.png Caption2 Left humerus. Posterior view. System Precursor MeshName MeshNumber DorlandsPre DorlandsSuf The body or shaft of the humerus is almost cylindrical in the upper half of its extent, prismatic and flattened below, and has three borders and three surfaces. Borders Anterior The anterior border runs from the front of the greater tubercle above to the coronoid fossa below, separating the antero medial from the antero lateral surface. Its upper part is a prominent ridge, the crest of the greater tubercle it serves for the insertion of the tendon of the pectoralis major muscle . About its center it forms the anterior boundary of the deltoid tuberosity , on which the deltoid muscle attaches below, it is smooth and rounded, affording attachment to the brachialis muscle . Lateral The lateral border runs from the back part of the greater tubercle to the lateral epicondyle, and separates the anterolateral from the posterior surface. Its upper half is rounded and indistinctly marked, serving for the attachment of the lower part of the insertion of the teres minor muscle , and below this giving origin to the lateral head of the triceps brachii muscle its center is traversed by a broad but shallow oblique depression, the spiral groove musculospiral groove . The radial nerve runs in the spiral groove. Its lower part forms a prominent, rough margin, a little curved from backword, farword the lateral supracondylar ridge, which presents an anterior lip for the origin of the brachioradialis muscle above, and extensor carpi radialis longus muscle above, a posterior lip for the triceps brachii muscle , and an intermediate ridge for the attachment of the lateral intermuscular septum . Medial The medial border extends from the lesser tubercle to the medial epicondyle. Its upper third consists of a prominent ridge, the crest of the lesser ... more details
Infobox Bone Name Coronoid fossa of the humerus Latin fossa coronoidea humeri GraySubject 51 GrayPage 212 Image Gray207.png Caption Left humerus. Anterior view. Coronoid fossa visible at bottom center, on left side. Image2 Caption2 Precursor System Artery Vein Nerve Lymph MeshName MeshNumber DorlandsPre f 14 DorlandsSuf 12375768 Superior to the anterior portion of the Trochlea of humerus trochlea is a small depression, the coronoid fossa , which receives the coronoid process of the ulna during flexion of the forearm . It is directly adjacent to the Radial fossia of the Humerus. Additional images gallery Image Human arm bones diagram.svg Human arm bones diagram gallery External links NormanAnatomy lesson4bonesofarm&forearm Gray s Bones of upper extremity musculoskeletal stub gl Foxa coronoide hu Fossa coronoidea humeri th ... more details
Infobox bone Name Upper extremity of humerus Latin GraySubject 51 GrayPage 209 Image Humeral head anterior posterior.png Caption Left humerus . Anterior and posterior views. System Precursor MeshName MeshNumber DorlandsPre DorlandsSuf The upper or proximal extremity of the humerus consists of the bone s large rounded head joined to the body by a constricted portion called the neck, and two eminences, the greater and lesser tubercles. Humeral head Head of the humerus redirects here The head caput humeri , nearly hemispherical in form. It is directed upward, medialward, and a little backward, and articulates with the glenoid cavity of the scapula. The circumference of its articular surface is slightly constricted and is termed the anatomical neck, in contradistinction to a constriction below the tubercles called the surgical neck which is frequently the seat of fracture. Fracture of the anatomical neck rarely occurs. ref name Gray s Gray s Anatomy , see infobox ref Anatomical neck Main anatomical neck of the humerus The anatomical neck collum anatomicum is obliquely directed, forming an obtuse angle with the body. It is best marked in the lower half of its circumference in the upper half it is represented by a narrow groove separating the head from the tubercles. It affords attachment to the articular capsule of the shoulder joint, and is perforated by numerous vascular foramina. Fracture of the anatomical neck rarely occurs. ref name Gray s The anatomical neck of the humerus is an indentation distal to the head of the humerus on which the articular capsule attaches. Tubercles ... of the bone. ref name Gray s Surgical neck Main surgical neck of the humerus The surgical neck is a narrow ... of the scapula File Gray207.png Left humerus. Anterior view. File Gray208.png Left humerus. Posterior view. File AnteriorHeadOfLeftHumerus.jpg Left humerus. Anteriolateral view. File MedialHeadOfLeftHumerus.jpg Left humerus. Medial view. References Reflist Gray s Bones of upper extremity Category ... more details
Infobox Anatomy Name PAGENAME Latin collum chirurgicum humeri GraySubject 51 GrayPage 209 Image HumerusFront.png Caption Left humerus. Anterior view. Surgical neck labeled at upper left. Image2 Caption2 Precursor System Artery Vein Nerve Lymph MeshName MeshNumber DorlandsPre c 46 DorlandsSuf 12249468 The surgical neck of the humerus is a constriction below the tubercles of the greater tubercle and lesser tubercle . It is much more frequently fractured than the anatomical neck of the humerus . A fracture in this area is most likely to cause damage to the axillary nerve . Damage to the axillary nerve would effect function of the teres minor muscle and deltoid muscle , resulting in loss of abduction of arm from 15 90 degrees , weak flexion, extension, and rotation of shoulder. Paralysis of deltoid & teres minor results in Flat shoulder deformity and loss of sensation of the skin over a small part of the lateral upper arm See also Quadrangular space External links PSUAnatomy skel humerusup2 Medcyclopaedia ii s surgical neck of humerus NormanAnatomy radiographsul NormanAnatomyFig xrayleftshoulder Gray s musculoskeletal stub Bones of upper extremity gl Pescozo umeral cir rxico hu Collum chirurgicum humeri ro Colul chirurgical al humerusului th ... more details
Infobox Bone Name Lateral epicondyle of the humerus Latin e. lateralis humeri GraySubject 51 GrayPage 212 Image Gray420.png Caption The Supinator . Lateral epicondyle labeled at upper right. Image2 Epicondyluslateralishumeri.png Caption2 Left elbow joint, showing posterior and radial collateral ligaments. Lateral epicondyle visible at center. System Precursor MeshName MeshNumber DorlandsPre e 11 DorlandsSuf 12336755 The lateral epicondyle of the humerus is a small, tuberculated eminence, curved a little forward, and giving attachment to the radial collateral ligament elbow radial collateral ligament of the elbow joint , and to a tendon common to the origin of the Supinator and some of the Extensor muscles. In birds , where the arm is somewhat rotated compared to other tetrapod s, it is termed dorsal epicondyle of the humerus . See also Medial epicondyle of the humerus Common extensor tendon Additional images gallery Image HumerusFront.png Left humerus. Anterior view. Image Gray210.png Plan of ossification of the humerus. Image Gray418.png Posterior surface of the forearm. Superficial muscles. Image Gray419.png Posterior surface of the forearm. Deep muscles. gallery External links SUNYAnatomyFigs 07 02 03 BiowebUW aplab Table of Contents Lab 04 Humerus 1 Humerus 1d humerus 1d.html aplab NormanAnatomy radiographsul NormanAnatomyFig xrayelbow Gray s Bones of upper extremity Category Upper limb anatomy musculoskeletal stub hu K ls k ny kdudor no Lateral epikondylitt pt Epic ndilo lateral do mero ro Epicondilul lateral al humerusului th ... more details
Infobox Bone Name Lower extremity of humerus Latin GraySubject 51 GrayPage 212 Image Gray207.png Caption Left humerus . Anterior view. Image2 Caption2 System Precursor MeshName MeshNumber DorlandsPre DorlandsSuf The lower extremity of the humerus is flattened from before backward, and curved slightly forward it ends below in a broad, articular surface, which is divided into two parts by a slight ridge. Projecting on either side are the lateral and medial epicondyle s. Articular surface The articular surface extends a little lower than the epicondyles, and is curved slightly forward its medial extremity occupies a lower level than the lateral. The lateral portion of this surface consists of a smooth, rounded eminence, named the capitulum of the humerus it articulates with the cup shaped depression on the head of the radius, and is limited to the front and lower part of the bone. On the medial side of this eminence is a shallow groove, in which is received the medial margin of the head of the radius . Above the front part of the capitulum of the humerus capitulum is a slight depression, the radial fossa , which receives the anterior border of the head of the radius, when the forearm is flexed. Borders The medial portion of the articular surface is named the trochlea of humerus trochlea , and presents a deep depression between two well marked borders it is convex from before backward, concave from side to side, and occupies the anterior, lower, and posterior parts of the extremity. The lateral border separates it from the groove which articulates with the margin of the head of the radius. The medial border is thicker, of greater length, and consequently more prominent, than the lateral ... of the humerus lateral epicondyle is a small, tuberculated eminence, curved a little forward, and giving ... of the Supinator and some of the Extensor muscles. The medial epicondyle of the humerus .... Additional images gallery Image Gray208.png Left humerus. Posterior view. Image Gray329.png Left ... more details
Infobox Bone Name Medial epicondyle of the humerus Latin e. medialis humeri GraySubject 51 GrayPage 212 Image Gray329 Medial epicondyle of the humerus.png Caption Left elbow joint, showing anterior and ulnar collateral ligaments. Medial epicondyle labeled at center top. Image2 Gray210.png Caption2 Plan of ossification of the humerus . Medial epicondyle labeled at lower left. System Precursor MeshName MeshNumber DorlandsPre e 11 DorlandsSuf 12336773 The medial epicondyle of the humerus , larger and more prominent than the lateral epicondyle , is directed a little backward. In birds , where the arm is somewhat rotated compared to other tetrapod s, it is called ventral epicondyle of the humerus . It gives attachment to the ulnar collateral ligament of elbow joint , to the Pronator teres , and to a common tendon of origin the common flexor tendon of some of the Flexor muscles of the forearm . The ulnar nerve runs in a groove on the back of this epicondyle . Additional images gallery Image HumerusFront.png Left humerus. Anterior view. Image Gray414.png Front of the left forearm. Superficial muscles. Image Gray419.png Posterior surface of the forearm. Deep muscles. gallery External links SUNYAnatomyFigs 07 02 02 BiowebUW aplab Table of Contents Lab 04 Humerus 1 Humerus 1d humerus 1d.html aplab NormanAnatomy radiographsul NormanAnatomyFig xrayelbow Gray s Bones of upper extremity Category Upper limb anatomy musculoskeletal stub gl Epic ndilo medial hu Bels k ny kdudor pt Epic ndilo medial do mero th ... more details
Infobox Bone Name Anatomical neck of humerus Latin collum anatomicum humeri GraySubject 51 GrayPage 209 Image HumerusFront.png Caption Left humerus. Anterior view. Anatomical neck labeled at upper left. Image2 Caption2 Precursor System Artery Vein Nerve Lymph MeshName MeshNumber DorlandsPre c 46 DorlandsSuf 12249462 The anatomical neck of the humerus is obliquely directed, forming an obtuse angle with the body. It is best marked in the lower half of its circumference in the upper half it is represented by a narrow groove separating the head from the tubercles. It affords attachment to the articular capsule of the shoulder joint , and is perforated by numerous vascular foramina . Additional images gallery Image Gray326.png The left shoulder and acromioclavicular joints, and the proper ligaments of the scapula. gallery External links PSUAnatomy skel humerusup2 NormanAnatomy radiographsul NormanAnatomyFig xrayleftshoulder Gray s Bones of upper extremity Category Skeletal system musculoskeletal stub ar gl Pescozo umeral anat mico hu Collum anatomicum humeri ro Colul anatomic al humerusului th ... more details
Infobox Anatomy Name PAGENAME Latin GraySubject 83 GrayPage 317 Image Gray327.png Caption Capsule of shoulder joint distended . Anterior aspect. Image2 Caption2 Precursor System Artery Vein Nerve Lymph MeshName MeshNumber DorlandsPre c 07 DorlandsSuf 12211261 The articular capsule of the humerus is the articular capsule of the Glenohumeral joint shoulder joint . It completely encircles the joint, being attached, above, to the circumference of the glenoid cavity beyond the glenoidal labrum below, to the anatomical neck of the humerus , approaching nearer to the articular cartilage above than in the rest of its extent. It is thicker above and below than elsewhere, and is so remarkably loose and lax, that it has no action in keeping the bones in contact, but allows them to be separated from each other more than 2.5 cm., an evident provision for that extreme freedom of movement which is peculiar to this articulation. It is strengthened, above, by the Supraspinatus below, by the long head of the Triceps brachii behind, by the tendons of the Infraspinatus and Teres minor and in front, by the tendon of the Subscapularis . Openings There are usually three openings in the capsule. One anteriorly, below the coracoid process, establishes a communication between the joint and a bursa beneath the tendon of the Subscapularis. The second, which is not constant, is at the posterior part, where an opening sometimes exists between the joint and a bursal sac under the tendon of the Infraspinatus. The third is between the tubercles of the humerus, for the passage of the long tendon of the Biceps brachii. Gray s Joints of upper limbs musculoskeletal stub Category Upper limb anatomy gl C psula articular glenoumeral ... more details
Lateral epicondyle can refer to Lateral epicondyle of the humerus dorsal epicondyle in bird s Lateral epicondyle of the femur disambig ... more details
Unreferenced date December 2009 Image Ceprosoblepon.jpg thumb Male glassfrog, the bluish extension in the arm is the humeral spine humerus Humeral spines are ventrolateral extensions of the humerus humeral crista ventralis. This structures are present in the humerus of some frog s anuran s . The majority of anura n species that present humeral spines are glassfrogs family Centrolenidae but humeral spines have been reported in various other species of different families of frogs, including Leptodactylidae Ceratophryidae and Hylidae . In all cases, humeral spines are present in males but not in females. References reflist DEFAULTSORT Humeral Spine Category Amphibian anatomy Category Frogs ... more details
Summary X Ray of fractured human humerus in left arm 20 year old male Dan Glucksnis Licensing PD self date February 2008 Orphan image Copy to Wikimedia Commons bot Fbot ... more details
Infobox Anatomy Name Humeroulnar joint Latin articulatio humeroulnaris GraySubject 84 GrayPage 321 Image Gray329.png Caption Left elbow joint, showing anterior and ulnar collateral ligaments. Image2 Caption2 Precursor System Artery Vein Nerve Lymph MeshName MeshNumber DorlandsPre a 64 DorlandsSuf 12161261 The humeroulnar joint , is part of the elbow joint or the Olecron Joint, between the ulna and humerus bones is the simple hinge joint , which allows for movements of flexion, extension and circumduction. ref citebook title The Clinical Orthopedic Assessment Guide author Janice K. Loudon, Stephania L. Bell, Jane M. Johnston year 1998 publisher Human Kinetics isbn 0880115076 ref The Humero Ulnar Joint is the junction of trochlear notch of the ulna and the trochlea of the humerus. Owing to the obliquity of the trochlea of the humerus, this movement does not take place in the antero posterior plane of the body of the humerus. When the forearm is extended and supinated , the axis of the arm and forearm are not in the same line the arm forms an obtuse angle with the forearm the carrying angle . During flexion , however, the forearm and the hand tend to approach the middle line of the body, and thus enable the hand to be easily carried to the face. The accurate adaptation of the trochlea of the humerus, with its prominences and depressions, to the semilunar notch of the ulna, prevents any lateral movement. Flexion is produced by the action of the Biceps brachii and Brachialis , assisted by the Brachioradialis , with a tiny contribution from the muscles arising from the medial epicondyle of the humerus. Extension is produced by the Triceps brachii and Ancon us , with a tiny contribution from the muscles arising from the lateral epicondyle of the humerus , such as the Extensor digitorum communis . References references External links SUNYAnatomyLabs 10 st 11 06 Joints of the Upper Extremity Elbow joint Gray s Joints of upper limbs Category Joints Category Upper limb anatomy ... more details
Summary There is a 4.0 cm x 2.5 cm expansile cystic area with chondroid matrix and endosteal scalloping involving the lateral aspect of the proximal one third of the left humerus with a pathologic fracture involving the humeral head Licensing NoRightsReserved Orphan image ... more details
Infobox Bone Name Epicondyle Latin epicondylus GraySubject GrayPage Image Caption Image2 Caption2 Precursor System Artery Vein Nerve Lymph MeshName MeshNumber Epicondyle epi meaning upon condyle meaning knuckle or rounded articular area may refer to class wikitable medial epicondyle of the humerus br ventral epicondyle in birds medial epicondyle of the femur lateral epicondyle of the humerus br dorsal epicondyle in birds lateral epicondyle of the femur Bone and cartilage Category Skeletal system anatomy stub es Epic ndilo no Epikondyl sv Epikondyl ... more details
Infobox Bone Name Greater tubercle Latin tuberculum majus humeri GraySubject 51 GrayPage 209 Image Gray326.png Caption Left humerus. Anterior view. Greater tubercle visible at right. Image2 Caption2 System Precursor MeshName MeshNumber DorlandsPre t 21 DorlandsSuf 12828956 The greater tubercle of the humerus is situated lateral to the head of the humerus and posterolateral to the lesser tubercle . Its upper surface is rounded and marked by three flat impressions. the highest of these gives superior facet insertion to the Supraspinatus the middle middle facet to the Infraspinatus . the lowest one inferior facet , and the body of the bone for about 2.5 cm. below it, to the Teres minor . The lateral surface of the greater tubercle is convex, rough, and continuous with the lateral surface of the body. Between the greater tubercle and the lesser tubercle is the intertubercular sulcus bicipital groove . Additional images gallery Image Human arm bones diagram.svg Human arm bones diagram gallery External links SUNYAnatomyFigs 03 02 09 SUNYAnatomyFigs 05 01 07 SUNYAnatomyFigs 10 02 13 BiowebUW APlab Table of Contents Lab 04 Humerus 1 Humerus 1a humerus 1a.html aplab Gray s Bones of upper extremity Category Bones of the upper limb musculoskeletal stub es Tub rculo mayor del h mero gl Troqu ter umeral hu Tuberculum majus humeri sv Tuberculum majus humeri th ... more details
Orphan date February 2009 Infobox Anatomy Name Anterior ligament of elbow Latin GraySubject 84 GrayPage 81 Image Gray329.png Caption Left elbow joint, showing anterior and ulnar collateral ligaments. Image2 Gray330.png Caption2 Left elbow joint, showing posterior and radial collateral ligaments. System Precursor MeshName MeshNumber DorlandsPre DorlandsSuf The anterior ligament of the Elbow joint elbow is a broad and thin fibrous layer covering the anterior surface of the joint. It is attached to the front of the medial epicondyle of the humerus medial epicondyle and to the front of the humerus immediately above the coronoid and radial foss below, to the anterior surface of the coronoid process of the ulna and to the annular ligament , being continuous on either side with the collateral ligaments . Its superficial fibers pass obliquely from the medial epicondyle of the humerus to the annular ligament. The middle fibers, vertical in direction, pass from the upper part of the coronoid depression and become partly blended with the preceding, but are inserted mainly into the anterior surface of the coronoid process. The deep or transverse set intersects these at right angles. This ligament is in relation, in front, with the Brachialis , except at its most lateral part. ligament stub Gray s Category Ligaments Category Upper limb anatomy ... more details
File Humerus spiral fracture.png thumb alt An x ray image of a spiral fracture to the left humerus An x ray image of a spiral fracture to the left humerus of a 27 year old male. The injury was sustained during a fall. A spiral fracture a.k.a. torsion fracture is a bone fracture occurring when torque is applied along the axis of a bone . ref name harvard cite web title Spiral Fracture url http www.fas.harvard.edu scdiroff lds NewtonianMechanics SpiralFracture SpiralFracture.html publisher Harvard University accessdate 25 November 2010 ref While torsional forces are being applied along the parallel axis of a bone, planes perpendicular to this axis are not affected. Tension physics Tension is exerted upon one part of the bone, while Compression physical compressive forces are exerted upon the other. When these forces have exceeded the limit tolerable by the bone, fracture occurs. ref name harvard References reflist Fractures Med stub Category Bone fractures Category Traumatology de Torsionsbruch ... more details
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