Chapter 6: Practice Test B

Question 1

Which muscle is the prime mover in inhalation?

Answer 1

diaphragm

Question 2

The overall effect of raising the rib cage is to assist in

Answer 2

Inhalation

Question 3

Paralysis of this requires permanent ventilation with a machine

Answer 3

diaphragm

Question 4

Which of the following muscles is the most important synergist to the diaphragm?

Answer 4

external intercostals

Question 5

What condition results if muscles are not used, such as when in a cast?

Answer 5

atrophy

Question 6

During quiet breathing, ___ are active, while ____ are inactive.

Answer 6

scalenes / sternocleidomastoids

Question 7

Which does NOT compress abdomen during forced exhalation?

Answer 7

external intercostals

Question 8

What is the main function of the abdominal wall muscles group?

Answer 8

Forced expiration

Question 9

Which muscles have intercalated discs?

Answer 9

Cardiac

Question 10

Which of the following muscles are antagonists?

Answer 10

scalenes and internal intercostals

Question 11

Isotonic exercise in which muscles increase in size and strength

Answer 11

lifting weights

Question 12

The condition of skeletal muscle fatigue can be best explained by

Answer 12

inability of the muscle to contract even if stimulated

Question 13

An inherited disease that causes muscles to degenerate and atrophy is known as

Answer 13

muscular dystrophy

Question 14

Which muscles are both inspiratory and expiratory?

Answer 14

rib cage muscles

Question 15

Use of which muscles at rest is a sign of respiratory distress?

Answer 15

Accessory muscles