The external rotation that occurs at the glenohumeral joint after 80° to 90° of abduction produces a(n)________________roll and a(n)________________glide of the humeral head on the glenoid fossa.
A) posterior,posterior
B) anterior,anterior
C) anterior,posterior
D) posterior,anterior

Question

Quizplus · Accepted Answer

The external rotation that occurs at the glenohumeral joint after 80° to 90° of abduction produces a posterior roll and an anterior glide of the humeral head on the glenoid fossa. This movement pattern is part of the body's mechanism to increase the range of motion and maintain joint congruency.

The External Rotation That Occurs at the Glenohumeral Joint After