If a muscle crosses the glenohumeral (GH)joint laterally (over the top of the joint)with a vertical orientation to its fibers,what will its action be?

Question

Quizplus · Accepted Answer

A muscle that crosses the GH joint laterally and has a vertical orientation to its fibers will be responsible for abduction of the arm at the GH joint. This is because abduction involves moving the arm away from the midline of the body, which is achieved by lifting the arm laterally (out to the side) and away from the body.

If a Muscle Crosses the Glenohumeral (GH)joint Laterally (Over the Top