Question

what combination of movements can occur at the glenohumeral joint besides rotation?
abduction and adduction
gliding and rolling
flexion and extension
protraction and retraction

Explanation:

The glenohumeral (shoulder) joint is a ball-and-socket joint. Rotation is one of its movements, and it also performs several other angular movements.

• Abduction/adduction: Moving the arm away from/toward the midline, a valid glenohumeral movement.
• Gliding/rolling: These are joint motion types, not specific movement terms for this joint.
• Flexion/extension: Moving the arm forward/backward, a valid glenohumeral movement.
• Protraction/retraction: These occur at the sternoclavicular and acromioclavicular joints, not the glenohumeral joint.

Both abduction/adduction and flexion/extension are correct angular movements of the glenohumeral joint besides rotation.

Answer:

A. Abduction and adduction
C. Flexion and extension