originates in clavicle, sternum and ribs; inserts in upper humerus

abdominal muscle whose fibers run across the abdomen

originates in thoracic, lumbar and sacral vertebrae and crest of ilium; inserts in head of humerus

posterior thigh muscles

penn-

muscle is found over the shoulder

flexes forearm

used in winking and blinking

anterior upper arm

penn-