[Anatomic and radiographic examination of the shoulder joint of the cheetah (Acinonyx jubatus)].
Anatomical structures of shoulder joints of five adult cheetahs were examined by dissection, corrosion casts and radiography. The bones, capsules and auxiliary synovial devices were described, as well as ligaments and adjacent muscles. The cheetah shoulder has many similarities with the shoulder joint of the domestic cat, but also considerable differences. Proper osteological features were the large supraglenoid tubercle, the caudally directed coracoid process and the extension of the articular surface of the scapula to the lateral area of the supraglenoid tubercle. On the proximal end of the humerus the width of the head of humerus, the facet of infraspinatus muscle as a shallow cavity with the insertion of the infraspinatus muscle around it and two raised roughnesses on the proximal end of the tricipital line for the insertions of the lateral glenohumeral ligament and the teres minor muscle were noticeable. The insertion of the joint capsule was mainly on the glenoid labrum, only in part of the articular surface on the lateral area of the supraglenoid tubercle laterally on the scapula. The joint capsule formed a supra- and infraspinatus recess laterally, an intertubercular tendon sheet for the biceps brachii muscle cranially, and a bipartited subscapular recess medially. An extracapsular transverse ligament passing the intertubercular groove, a laterally capsular strengthening--called lateral glenohumeral ligament--and an intracapsular medial glenohumeral ligament could be found. The latter one was joined to the capsule by a mesoligament, dividing the subscapular recess into two pouches.
Künzel
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Institut für Anatomie der Veterinärmedizinischen Universität Wien, Osterreich.
Probst
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Henninger
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D002612:Acinonyx / Q000033:anatomy & histology*; D000818:Animals; D002415:Cats / Q000033:anatomy & histology; D006811:Humerus / Q000033:anatomy & histology / Q000000981:diagnostic imaging; D008953:Models, Anatomic; D018482:Muscle, Skeletal / Q000033:anatomy & histology / Q000000981:diagnostic imaging; D011859:Radiography; D012785:Shoulder Joint / Q000033:anatomy & histology* / Q000000981:diagnostic imaging*
Anatomische und röntgenologische Untersuchungen am Schultergelenk des Geparden (Acinonyx jubatus).