10. Muscles

Levers make action more versatile by all of the following, except

(a) Changing the location of the muscle's insertion

(b) Changing the speed of movement produced by an applied force

(c) Changing the distance of movement produced by an applied force

(d) Changing the strength of an applied force

(e) Changing the direction of an applied force

The more movable end of a muscle is the

(a) Insertion

(b) Belly

(c) Origin

(d) Proximal end

(e) Distal end

Which of the following muscles attach to the hip bones?

a. Rectus abdominis

b. Rectus femoris

c. Vastus medialis

d. Vastus lateralis

The muscles of facial expression are innervated by cranial nerve

(a) VII

(b) V

(c) IV

(d) VI

Which of these thigh muscles causes movement at the hip joint?

a. Rectus femoris

b. Biceps femoris

c. Vastus lateralis

d. Semitendinosus

Which of the following inserts on the arm?

a. Biceps brachii

b. Triceps brachii

c. Trapezius

d. Latissimus dorsi

In addition to acting to flex the spine and compress the abdominal contents, the abdominal muscles are extremely important in protecting and containing the abdominal viscera. What is it about the arrangement of these muscles that makes them so well suited for their job?

What is an aponeurosis? Give two examples.

Distinguish between

a. Direct and indirect muscle attachments and

b. A tendon and an aponeurosis

Explain the general relationship between the muscles that flex and extend the wrist, including their location on the body.