Insertion site for Subscapularis?

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Multiple Choice

Insertion site for Subscapularis?

Explanation:
Subscapularis attaches to the lesser tuberosity of the humerus. This location matches its role as the primary internal rotator of the shoulder and anterior stabilizer of the glenohumeral joint. The greater tuberosity is for the supraspinatus, infraspinatus, and teres minor, which pull on the lateral/posterior aspect of the humeral head. The acromion and coracoid process are parts of the scapula, not tendon insertions for the subscapularis. So the lesser tuberosity is the correct insertion site.

Subscapularis attaches to the lesser tuberosity of the humerus. This location matches its role as the primary internal rotator of the shoulder and anterior stabilizer of the glenohumeral joint. The greater tuberosity is for the supraspinatus, infraspinatus, and teres minor, which pull on the lateral/posterior aspect of the humeral head. The acromion and coracoid process are parts of the scapula, not tendon insertions for the subscapularis. So the lesser tuberosity is the correct insertion site.

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