Infraspinatus muscle :-
Muscle details :-
- the infraspinatus muscle is a thick triangular muscle, which occupies the chief part of the infraspinatous fossa.
- medial two -thirds of the infraspinous fossa of the scapula .
- middle impression on the greater tubercle of the humerus .
Nerve supply :-
- suprascapular nerve (c5-c6) .
- lateral rotator of arm . Helps stablize the shoulder by drawing the humerus toward the glenoid fossa of the scapula.