Question

What is the function of anterior and posterior tilting of the scapula during glenohumeral motion?

A. Allows the scapula to move independently of the humerus
B. Allows the scapula to maintain contact with horizontal curvature of the thorax
C. Allows the scapula to maintain contact with curvature of the rib cage and orients glenoid fossa with humeral head
D. Allows the inferior orientation of the glenoid fossa to maintain the humeral head in the fossa

Answer 1

The function of anterior and posterior tilting of the scapula during glenohumeral motion is to maintain contact with the rib cage and orient the glenoid fossa with the humeral head.

Step-by-step explanation:

The function of anterior and posterior tilting of the scapula during glenohumeral motion is to allow the scapula to maintain contact with the curvature of the rib cage and orient the glenoid fossa with the humeral head.

Anterior tilting of the scapula occurs when the glenoid cavity moves in the superior direction, while the posterior tilting of the scapula happens when the glenoid cavity moves in the inferior direction. By allowing the scapula to maintain contact with the rib cage, these tilting motions help stabilize the glenohumeral joint and facilitate proper movement of the arm.