Shoulder Abduction

Deltoid
Posted On September 28 2020. Updated On September 28 2020.
The deltoid muscle is a major flexor of the shoulder joint, the muscle is innervated by axillary nerve from the the C4-C5.
Supraspinatus
Posted On September 28 2020. Updated On September 28 2020.
The supraspinatus (plural supraspinati, from Latin supraspinatus) is a relatively small muscle of the upper arm that runs from the supraspinatous fossa superior of the scapula (shoulder blade) to the greater tubercle of the humerus.