BIOS 150 Week 3 Quiz Exam 4 (Latest
Update ) Anatomy and
Physiology IV with Lab | Questions &
Answers | 100% Correct | Grade A -
Chamberlain
1. The primary function of the cardiovascular system is to:
A. Transport nutrients, gases, and wastes
B. Store energy
C. Produce hormones
D. Protect against pathogens only
Correct Answer: A. Transport nutrients, gases, and wastes
Rationale: The heart and vessels move blood carrying oxygen,
nutrients, and waste products.
2. The heart has how many chambers?
A. 2
B. 3
C. 4
D. 5
Correct Answer: C. 4
Rationale: Two atria and two ventricles.
,3. The right atrium receives blood from:
A. Systemic veins
B. Lungs
C. Left ventricle
D. Aorta
Correct Answer: A. Systemic veins
Rationale: Receives deoxygenated blood via superior and inferior
vena cava.
4. The left atrium receives blood from:
A. Lungs
B. Systemic veins
C. Right ventricle
D. Pulmonary artery
Correct Answer: A. Lungs
Rationale: Receives oxygenated blood via pulmonary veins.
5. The aorta carries blood:
A. From left ventricle to body
B. From right ventricle to lungs
C. Into atria
D. Into veins
Correct Answer: A. From left ventricle to body
Rationale: Major systemic artery distributing oxygenated blood.
,6. Pulmonary arteries carry:
A. Deoxygenated blood to lungs
B. Oxygenated blood to lungs
C. Deoxygenated blood to heart
D. Oxygenated blood to heart
Correct Answer: A. Deoxygenated blood to lungs
Rationale: Pulmonary circulation moves blood to lungs for gas
exchange.
7. Pulmonary veins carry:
A. Oxygenated blood to left atrium
B. Deoxygenated blood to right atrium
C. Blood to lungs
D. Blood to body
Correct Answer: A. Oxygenated blood to left atrium
Rationale: Pulmonary veins return oxygen-rich blood to the heart.
8. The heart valves prevent:
A. Backflow of blood
B. Electrical conduction
C. Blood clotting
D. Oxygen transport
Correct Answer: A. Backflow of blood
Rationale: Ensures unidirectional flow through heart chambers.
, 9. The tricuspid valve is located:
A. Between right atrium and right ventricle
B. Between left atrium and left ventricle
C. Between ventricles and arteries
D. At aorta only
Correct Answer: A. Between right atrium and right ventricle
Rationale: Controls blood flow into right ventricle.
10. The bicuspid (mitral) valve is located:
A. Between left atrium and left ventricle
B. Between right atrium and right ventricle
C. At pulmonary artery
D. At aorta
Correct Answer: A. Between left atrium and left ventricle
Rationale: Prevents backflow into left atrium.
11. Semilunar valves include:
A. Pulmonary and aortic valves
B. Tricuspid and bicuspid valves
C. Only atrioventricular valves
D. Only venous valves
Correct Answer: A. Pulmonary and aortic valves
Rationale: Control blood flow out of ventricles into arteries.
12. The pacemaker of the heart is:
Update ) Anatomy and
Physiology IV with Lab | Questions &
Answers | 100% Correct | Grade A -
Chamberlain
1. The primary function of the cardiovascular system is to:
A. Transport nutrients, gases, and wastes
B. Store energy
C. Produce hormones
D. Protect against pathogens only
Correct Answer: A. Transport nutrients, gases, and wastes
Rationale: The heart and vessels move blood carrying oxygen,
nutrients, and waste products.
2. The heart has how many chambers?
A. 2
B. 3
C. 4
D. 5
Correct Answer: C. 4
Rationale: Two atria and two ventricles.
,3. The right atrium receives blood from:
A. Systemic veins
B. Lungs
C. Left ventricle
D. Aorta
Correct Answer: A. Systemic veins
Rationale: Receives deoxygenated blood via superior and inferior
vena cava.
4. The left atrium receives blood from:
A. Lungs
B. Systemic veins
C. Right ventricle
D. Pulmonary artery
Correct Answer: A. Lungs
Rationale: Receives oxygenated blood via pulmonary veins.
5. The aorta carries blood:
A. From left ventricle to body
B. From right ventricle to lungs
C. Into atria
D. Into veins
Correct Answer: A. From left ventricle to body
Rationale: Major systemic artery distributing oxygenated blood.
,6. Pulmonary arteries carry:
A. Deoxygenated blood to lungs
B. Oxygenated blood to lungs
C. Deoxygenated blood to heart
D. Oxygenated blood to heart
Correct Answer: A. Deoxygenated blood to lungs
Rationale: Pulmonary circulation moves blood to lungs for gas
exchange.
7. Pulmonary veins carry:
A. Oxygenated blood to left atrium
B. Deoxygenated blood to right atrium
C. Blood to lungs
D. Blood to body
Correct Answer: A. Oxygenated blood to left atrium
Rationale: Pulmonary veins return oxygen-rich blood to the heart.
8. The heart valves prevent:
A. Backflow of blood
B. Electrical conduction
C. Blood clotting
D. Oxygen transport
Correct Answer: A. Backflow of blood
Rationale: Ensures unidirectional flow through heart chambers.
, 9. The tricuspid valve is located:
A. Between right atrium and right ventricle
B. Between left atrium and left ventricle
C. Between ventricles and arteries
D. At aorta only
Correct Answer: A. Between right atrium and right ventricle
Rationale: Controls blood flow into right ventricle.
10. The bicuspid (mitral) valve is located:
A. Between left atrium and left ventricle
B. Between right atrium and right ventricle
C. At pulmonary artery
D. At aorta
Correct Answer: A. Between left atrium and left ventricle
Rationale: Prevents backflow into left atrium.
11. Semilunar valves include:
A. Pulmonary and aortic valves
B. Tricuspid and bicuspid valves
C. Only atrioventricular valves
D. Only venous valves
Correct Answer: A. Pulmonary and aortic valves
Rationale: Control blood flow out of ventricles into arteries.
12. The pacemaker of the heart is:
