Update ) Anatomy and
Physiology IV with Lab | Questions &
Answers | 100% Correct | Grade A -
Chamberlain
1. What is the main function of red blood cells?
A. Fight infection
B. Transport oxygen
C. Produce hormones
D. Clot blood
Correct Correct Answer: B
Rationale: Red blood cells contain hemoglobin, which binds and
transports oxygen throughout the body.
2. Which protein in red blood cells carries oxygen?
A. Albumin
B. Hemoglobin
C. Fibrinogen
D. Globulin
,Correct Correct Answer: B
Rationale: Hemoglobin is the oxygen-carrying protein found in red
blood cells.
3. White blood cells are primarily involved in:
A. Oxygen transport
B. Immunity
C. Clotting
D. Hormone production
Correct Correct Answer: B
Rationale: White blood cells protect the body against infections and
foreign invaders.
4. Platelets are responsible for:
A. Oxygen transport
B. Immune response
C. Blood clotting
D. Hormone release
Correct Correct Answer: C
Rationale: Platelets help form clots to stop bleeding.
5. Which blood vessel carries blood away from the heart?
A. Veins
B. Arteries
,C. Capillaries
D. Venules
Correct Correct Answer: B
Rationale: Arteries carry oxygenated blood away from the heart
(except pulmonary artery).
6. Which blood vessel has the thinnest walls?
A. Arteries
B. Veins
C. Capillaries
D. Arterioles
Correct Correct Answer: C
Rationale: Capillaries have thin walls to allow exchange of gases
and nutrients.
7. The heart has how many chambers?
A. 2
B. 3
C. 4
D. 5
Correct Correct Answer: C
Rationale: The human heart has four chambers: two atria and two
ventricles.
, 8. The right ventricle pumps blood to the:
A. Body
B. Lungs
C. Brain
D. Liver
Correct Correct Answer: B
Rationale: The right ventricle sends deoxygenated blood to the
lungs via the pulmonary artery.
9. The left ventricle pumps blood to the:
A. Lungs
B. Heart
C. Body
D. Kidneys
Correct Correct Answer: C
Rationale: The left ventricle pumps oxygenated blood to the entire
body.
10. Which vessel carries oxygenated blood from lungs to heart?
A. Pulmonary artery
B. Pulmonary vein
C. Aorta
D. Vena cava