) Anatomy and Physiology IV
with Lab | Questions & Answers | 100%
Correct | Grade A - Chamberlain
1. The primary function of the respiratory system is:
A. Circulate blood
B. Exchange gases
C. Digest food
D. Produce hormones
Correct Answer: B
Rationale:Provides oxygen to the body and removes carbon dioxide.
2. The functional units of the kidney are called:
A. Nephrons
B. Alveoli
C. Neurons
D. Capillaries
Correct Answer: A
Rationale:Nephrons filter blood and form urine.
3. The heart has how many chambers?
,A. 2
B. 3
C. 4
D. 5
Correct Answer: C
Rationale:Two atria and two ventricles ensure efficient blood flow.
4. Arteries carry blood:
A. To the heart
B. Away from the heart
C. Only oxygenated blood
D. Only deoxygenated blood
Correct Answer: B
Rationale:Arteries transport blood under high pressure from the
heart.
5. Veins carry blood:
A. Away from the heart
B. To the heart
C. Only oxygenated blood
D. Only arteries
Correct Answer: B
Rationale:Veins return blood to the heart under low pressure.
6. Capillaries are important because:
,A. Connect arteries and veins
B. Produce hormones
C. Store oxygen
D. Make ATP
Correct Answer: A
Rationale:Allow exchange of gases, nutrients, and waste.
7. The largest artery in the body is:
A. Pulmonary artery
B. Aorta
C. Coronary artery
D. Femoral artery
Correct Answer: B
Rationale:Distributes oxygenated blood from the heart to the body.
8. Red blood cells function to:
A. Transport oxygen
B. Fight infections
C. Clot blood
D. Produce hormones
Correct Answer: A
Rationale:Contain hemoglobin that binds oxygen.
9. White blood cells function to:
, A. Fight infections
B. Carry oxygen
C. Form clots
D. Digest food
Correct Answer: A
Rationale:Part of the immune system.
10. Platelets function to:
A. Aid in blood clotting
B. Carry oxygen
C. Fight infections
D. Transport nutrients
Correct Answer: A
Rationale:Aggregate at injury sites to prevent bleeding.
11. Plasma is:
A. The liquid part of blood
B. White blood cells
C. Platelets
D. Red blood cells
Correct Answer: A
Rationale:Transports nutrients, hormones, and waste products.
12. Hemoglobin contains: