BIOS 255 Anatomy & Physiology III
Exam final (Latest Update )
Anatomy and Physiology IV with Lab |
Questions & Answers | 100% Correct |
Grade A - Chamberlain
1. The primary function of the circulatory system is:
A. Transport of nutrients, gases, and wastes
B. Regulation of body temperature only
C. Production of hormones
D. Absorption of nutrients
Correct Answer: A. Transport of nutrients, gases, and wastes
Rationale: The circulatory system moves oxygen, carbon dioxide,
nutrients, hormones, and waste products throughout the body.
2. Which chamber of the heart receives oxygenated blood from
the lungs?
A. Left atrium
B. Right atrium
C. Left ventricle
D. Right ventricle
Correct Answer: A. Left atrium
,Rationale: The left atrium receives oxygen-rich blood from the
pulmonary veins.
3. Which chamber pumps oxygenated blood to the body?
A. Left ventricle
B. Right ventricle
C. Left atrium
D. Right atrium
Correct Answer: A. Left ventricle
Rationale: The left ventricle pumps blood into the systemic
circulation via the aorta.
4. Which valve prevents backflow from the left ventricle to the
left atrium?
A. Mitral (bicuspid) valve
B. Tricuspid valve
C. Aortic valve
D. Pulmonary valve
Correct Answer: A. Mitral (bicuspid) valve
Rationale: Mitral valve closes during ventricular contraction to
prevent backflow.
5. The valve between the right atrium and right ventricle is:
A. Tricuspid valve
B. Mitral valve
,C. Aortic valve
D. Pulmonary valve
Correct Answer: A. Tricuspid valve
Rationale: Prevents blood from flowing back into the right atrium
during systole.
6. The valve between the right ventricle and pulmonary artery is:
A. Pulmonary valve
B. Aortic valve
C. Tricuspid valve
D. Mitral valve
Correct Answer: A. Pulmonary valve
Rationale: Prevents backflow from pulmonary artery into the right
ventricle.
7. The valve between the left ventricle and aorta is:
A. Aortic valve
B. Pulmonary valve
C. Mitral valve
D. Tricuspid valve
Correct Answer: A. Aortic valve
Rationale: Prevents blood from returning to the left ventricle.
8. Which blood vessels carry oxygenated blood away from the
heart?
, A. Arteries
B. Veins
C. Capillaries
D. Venules
Correct Answer: A. Arteries
Rationale: Arteries transport oxygen-rich blood from the heart to
tissues.
9. Which blood vessels carry deoxygenated blood to the heart?
A. Veins
B. Arteries
C. Capillaries
D. Arterioles
Correct Answer: A. Veins
Rationale: Veins return oxygen-poor blood to the heart.
10. The exchange of gases and nutrients occurs in:
A. Capillaries
B. Arteries
C. Veins
D. Venules
Correct Answer: A. Capillaries
Rationale: Capillaries have thin walls allowing diffusion of oxygen,
nutrients, and wastes.
11. The pacemaker of the heart is:
Exam final (Latest Update )
Anatomy and Physiology IV with Lab |
Questions & Answers | 100% Correct |
Grade A - Chamberlain
1. The primary function of the circulatory system is:
A. Transport of nutrients, gases, and wastes
B. Regulation of body temperature only
C. Production of hormones
D. Absorption of nutrients
Correct Answer: A. Transport of nutrients, gases, and wastes
Rationale: The circulatory system moves oxygen, carbon dioxide,
nutrients, hormones, and waste products throughout the body.
2. Which chamber of the heart receives oxygenated blood from
the lungs?
A. Left atrium
B. Right atrium
C. Left ventricle
D. Right ventricle
Correct Answer: A. Left atrium
,Rationale: The left atrium receives oxygen-rich blood from the
pulmonary veins.
3. Which chamber pumps oxygenated blood to the body?
A. Left ventricle
B. Right ventricle
C. Left atrium
D. Right atrium
Correct Answer: A. Left ventricle
Rationale: The left ventricle pumps blood into the systemic
circulation via the aorta.
4. Which valve prevents backflow from the left ventricle to the
left atrium?
A. Mitral (bicuspid) valve
B. Tricuspid valve
C. Aortic valve
D. Pulmonary valve
Correct Answer: A. Mitral (bicuspid) valve
Rationale: Mitral valve closes during ventricular contraction to
prevent backflow.
5. The valve between the right atrium and right ventricle is:
A. Tricuspid valve
B. Mitral valve
,C. Aortic valve
D. Pulmonary valve
Correct Answer: A. Tricuspid valve
Rationale: Prevents blood from flowing back into the right atrium
during systole.
6. The valve between the right ventricle and pulmonary artery is:
A. Pulmonary valve
B. Aortic valve
C. Tricuspid valve
D. Mitral valve
Correct Answer: A. Pulmonary valve
Rationale: Prevents backflow from pulmonary artery into the right
ventricle.
7. The valve between the left ventricle and aorta is:
A. Aortic valve
B. Pulmonary valve
C. Mitral valve
D. Tricuspid valve
Correct Answer: A. Aortic valve
Rationale: Prevents blood from returning to the left ventricle.
8. Which blood vessels carry oxygenated blood away from the
heart?
, A. Arteries
B. Veins
C. Capillaries
D. Venules
Correct Answer: A. Arteries
Rationale: Arteries transport oxygen-rich blood from the heart to
tissues.
9. Which blood vessels carry deoxygenated blood to the heart?
A. Veins
B. Arteries
C. Capillaries
D. Arterioles
Correct Answer: A. Veins
Rationale: Veins return oxygen-poor blood to the heart.
10. The exchange of gases and nutrients occurs in:
A. Capillaries
B. Arteries
C. Veins
D. Venules
Correct Answer: A. Capillaries
Rationale: Capillaries have thin walls allowing diffusion of oxygen,
nutrients, and wastes.
11. The pacemaker of the heart is:
