The prime mover of thigh extension against resistance is thea. gluteus maximus,b. gluteus medius,c. biceps femoris,d. semimembranosus.

Several muscles act to move and/or stabilize the scapula. Which of the following are small rectangular muscles that square the shoulders as they act together to retract the scapula?a. levator scapulae,b. rhomboids,c. serratus anterior,d. trapezius.

Important flexors of the vertebral column that act in opposition to the erector spinae are the (a) rectus abdominis, (b) longus capitis, (c) longus colli, (d) scalene.

A prime mover of thigh flexion is thea. rectus femoris,b. iliopsoas,c. vastus muscles,d. gluteus maximus.

The major extensor of the elbow is the (a) triceps brachii, (b) biceps brachii, (c) deltoid, (d) subscapularis.

The muscles that rotate the radius without producing either flexion or extension of the elbow are the (a) brachialis and brachioradialis, (b) pronator teres and supinator, (c) biceps brachii and triceps brachii, (d) a, b, and c.

Which criterion (or criteria) is/are used in naming the gluteus medius?a. relative size,b. muscle location,c. muscle shape,d. action,e. number of origins.

The powerful flexor of the hip is the (a) piriformis, (b) obturator, (c) pectineus, (d) iliopsoas.

Which of the following is a large, deep muscle that protracts the scapula during punching?a. serratus anterior,b. rhomboids,c. levator scapulae,d. subscapularis.