01 Feb D. responsible for movement

Question 1

1. Which of the following components of the skin is innermost, or farthest from the surface of the skin?

A. Sebaceous glands

B. Hair follicles

C. Hypodermis

D. Epidermis

Question 2

2. Unlike T lymphocytes, B lymphocytes

A. discover antigens in body fluids.

B. are made in the red bone marrow.

C. are white blood cells.

D. recognize infected body cells.

Question 3

3. Through the digestion system, water is mainly absorbed in the

A. stomach.

B. large intestine.

C. small intestine.

D. gallbladder.

Question 4

4. Unlike red blood cells, white blood cells

A. can live for many years.

B. are the most numerous cells in the blood.

C. are made in the bone marrow.

D. carry oxygen through the body.

Question 5

5. The _______ system helps guard against infection, protect from UV radiation, and regulate body temperature?

A. immune

B. circulatory

C. integumentary

D. endocrine

Question 6

6. Which of the following accurately describes immunity?

A. Passive immunity lasts a long time.

B. Active immunity won’t develop after an individual fights an infection.

C. Passive immunity can’t happen naturally.

D. Active immunity can develop from vaccinations.

Question 7

7. The sensory division of the body

A. is part of the central nervous system.

B. transmits impulses to the central nervous system from sense organs.

C. contains the somatic and autonomic nervous systems.

D. includes sensory neurons that receive impulses from the central nervous system

Question 8

8. Washing your hands is the best way to prevent against diseases that are spread

A. by coughing and sneezing.

B. through the exchange of body fluids.

C. through contaminated water.

D. by vectors.

Question 9

9. When considering maintenance of a healthy weight, nutrient needs are affected by all of the following except

A. lifestyle.

B. gender.

C. age.

D. race.

Question 10

10. Which structure within a bone contains cartilage cells that divide and increase the size of the bone until adulthood?

A. Compact bone

B. Spongy bone

C. Haversian canals

D. Growth plate

Question 11

11. Which of the following accurately pairs the type of receptor to the stimuli in which it responds?

A. Photoreceptor–chemicals

B. Pain receptor–tissue injury

C. Chemoreceptor–pressure

D. Mechanoreceptor–temperature

Question 12

12. Which types of freely movable joints are often found in areas of the body, such as the shoulders and hips, needing movement in many directions?

A. Ball-and-socket joints

B. Saddle joints

C. Hinge joints

D. Pivot joints

Question 13

13. After the skin is cut and a capillary wall breaks, what’s the first step in working to form a clot?

A. Thrombin causes sticky fibrin filaments to form the clot.

B. A set of reactions are triggered.

C. Platelets clump at the site.

D. The clot seals the area to prevent further blood loss.

Question 14

14. Unlike endocrine glands, exocrine glands

A. produce and release secretions.

B. release secretions into the blood.

C. include the thymus and thyroid.

D. utilize ducts to release their secretions.

Question 15

15. Which one of the following steps would be included in the primary response in humoral immunity?

A. Cytotoxic T cells bind to infected body cells and destroy them.

B. Antigen binds to antibodies.

C. Helper T cells activate cytotoxic T cells.

D. A macrophage consumes a virus and displays antigens on its surface and signals helper T cells to divide

Question 16

16. Which of the following accurately describes an effect of smoking?

A. Smoking damages cilia in the trachea and more particles enter the lungs.

B. Smoking decreases heart rate.

C. Smoking enables hemoglobin to carry more oxygen.

D. Smoking lowers blood pressure.

Question 17

17. Which one of the following accurately pairs the blood vessel type with its function?

A. Capillaries – work to exchange gases and nutrients with tissues

B. Veins – carry blood away from the heart

C. Arteries – carry blood to the heart

D. Aorta – carry oxygen-poor blood only

Question 18

18. After the action potential passes through an axon, what restores the resting potential?

A. Gated potassium channels open and allow potassium ions to flow out.

B. Gated potassium channels open and allow sodium to flow out of the cell.

C. Gated sodium channels open and allow sodium to flow into the cell.

D. Gated sodium channels open and allow potassium ions to flow out.

Question 19

19. Unlike smooth muscle, cardiac muscle is

A. connected by gap junctions.

B. found in the wall of hollow parts of the human body.

C. striated.

D. responsible for movement of food within the digestive tract.

Question 20

20. Which of the following best describes homeostasis in humans?

A. Homeostasis stops when external environments change.

B. Homeostasis stops when environments aren’t changing.

C. Homeostasis halts when internal environments change.

D. Homeostasis continues when environments change.