ANAT 1010 Lecture Notes - Lecture 9: Shoulder Girdle, Acromioclavicular Joint, Axial Skeleton
6 Feb 2020
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Document Summary
Connects the upper limb to the axial skeleton. The upper limb is connected to pectoral girdle at the shoulder (glenohumeral) joint. The pectoral girdle (unlike the pelvic girdle) does not articulate with the vertebral column but is held in place by muscles only. Articulates with sternum (axial skeleton) at the sternoclavicular joint. The only articulation between the upper limb and axial skeleton. Articulates with scapula at the acromioclavicular joint. Triangular at bone found in upper back region. A sharp ridge widening laterally to a at process called the acromion process. The acromion articulates with the lateral end of the clavicle (acromioclavicular joint) Supraspinous and infraspinous fossae: located posteriorly and serve fro muscular attachments. Glenoid cavity: located laterally and forms the shoulder (glenohumeral) joint with head of humerus. Coracoid process: serves for muscle attachment (e. g. short head of biceps brachii and coracobrachialis muscles. Articulates with the glenoid cavity of the scapula.
