10. Muscles

Based on the name, how does the fibularis brevis compare to the fibularis longus?

Based on the name, how would you expect the orbicularis oris muscle to be shaped?

Which of the following muscle names does NOT provide information about the muscle's actions?

Name the three pennate muscles in the following figure, and for each muscle indicate the type of pennate muscle based on the relationship of muscle fascicles to the tendon.

<IMAGE>

a. ___

b. ___

c. ___

d. ___

e. ___

f. ___

The arrangement of muscle fibers in which the fibers are arranged at an angle to a central longitudinal tendon is:

a. Circular

b. Longitudinal

c. Pennate

d. Parallel

Label the three visible muscles of the rotator cuff in the following posterior view of the deep muscles that move the arm.

a. ___

b. ___

c. ___

<IMAGE>

Match the muscle names in column B to the facial muscles described in column A.

Column A 

______ (1) squints the eyes 

______ (2) raises the eyebrows 

______ (3) smiling muscle 

______ (4) puckers the lips 

______ (5) pulls the scalp posteriorly

Column B

a. corrugator supercilii

b. depressor anguli oris

c. frontal belly of epicranius

d. occipital belly of epicranius

e. orbicularis oculi

f. orbicularis oris

g. zygomaticus

The prime mover of inspiration is the:

a. Diaphragm

b. Internal intercostals

c. External intercostals

d. Abdominal wall muscles

The arm muscle that both flexes and supinates the forearm is the

a. Brachialis

b. Brachioradialis

c. Biceps brachii

d. Triceps brachii