muscle originates in connective tissue of scalp and inserts in skin over eyebrows

posterior upper arm

abdominal muscle; second layer

mys-

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

ergo-

draws scalp back

muscle is located posterior of upper leg

lower leg muscle that dorsiflexes and inverts the foot

chest muscles