Scapula - Bone - Gross Anatomy Flashcards
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Scapula Anatomy: • Supraspinous fossa - superior to the spine • Infraspinous fossa - inferior to the spine • Body – triangular surface of scapula • Superior angle – projects superomedially • Inferior angle - projects inferiorly • Late
Scapula Anatomy: • Supraspinous fossa - superior to the spine • Infraspinous fossa - inferior to the spine • Body – triangular surface of scapula • Superior angle – projects superomedially • Inferior angle - projects inferiorly • Lateral angle – projects laterally; includes the glenoid cavity • Superior border - extends from the glenoid cavity to the superior angle • Lateral (aka axillary) border - extends from the inferior angle to the lateral angle • Medial (aka vertebral) border - extends from the superior angle to the inferior angle • Subscapular fossa - anterior surface of the scapula; it is the attachment site for subscapularis • Acromion - the most-superior extension of the scapula and arises from the scapula's posterior surface • Coracoid process - extends from the superior aspect of the scapula and projects laterally • Glenoid cavity (aka fossa) - laterally oriented cup-shaped depression where the humerus articulates with the pectoral girdle • Glenoid labrum - rim of the glenoid cavity, composed of fibrocartilage and aids in humeral stabilization • Supra- and infraglenoid tubercles - raised portions of bone above and below the glenoid cavity that provide muscle attachment sites for the biceps brachii and triceps brachii • Scapular neck - the portion of the scapula that extends toward the glenoid cavity • Spine of the scapula - prominent ridge of bone that separates the posterior scapula into superior and inferior portions • Acromion process - projects laterally; it is a continuation of the spine of the scapula • Suprascapular notch - a small indentation in the superior border medial to the coracoid process • Superior transverse ligament - closes off this notch superiorly to create a foramen through which the suprascapular nerve traverses. - Calcification of the superior transverse ligament can compress the suprascapular nerve and impair innervation to the posterior scapular muscles • The scapula articulates with the acromial end of the clavicle and the head of the humerus (upper arm).
Scapula - Bone - Gross Anatomy Flashcards
The Scapula - Surfaces - Fractures - Winging - TeachMeAnatomy
Scapula, anterior view, artwork - Stock Image - C010/7129 - Science Photo Library
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