A&P II Exam #2 Practice Questions with 100% Correct
Answers, Rationale & Objectives – Human Anatomy &
Physiology II for Nursing & Medical Students 2026
This document contains A&P II Exam #2 practice questions (2026) with correct
answers, detailed rationales, and learning objectives. It covers the cardiovascular,
lymphatic, immune, and respiratory systems, providing a thorough review for nursing,
pre-med, and allied health students preparing for exams.
A&P II Exam #2 – Practice Test with 100% Correct Answers (2026)
1) Which of the following is false regarding blood vessels?
Options:
a. They are dynamic structures.
b. Part of the cardiovascular system.
c. Capillaries are the site of gas and nutrient exchange.
d. Arteries carry blood away from the heart.
e. All of the above are true.
Correct Answer: e. All of the above are true.
,Rationale: All listed statements about blood vessels are true. Blood vessels
are dynamic, part of the cardiovascular system, capillaries exchange gases and
nutrients, and arteries carry blood away from the heart.
Objective: Identify the general properties of blood vessels.
2) Which statement(s) is/are true regarding the 3 layers that make blood
vessels?
Options:
a. The tunica media is the dynamic portion of the vessel that will dilate and
constrict.
b. The tunica intima is composed of one layer of endothelium.
c. The tunica externa anchors the blood vessel through elastic and collagen
fibers.
d. A and B
e. A, B, and C
Correct Answer: e. A, B, and C
Rationale:
Tunica media: controls vasoconstriction/vasodilation.
Tunica intima: one endothelial layer.
Tunica externa: structural support with elastic and collagen fibers. All
statements are correct.
Objective: Understand the structure and function of the three layers of blood
vessels.
,3) Which is not matched up with a general characteristic?
Options:
a. Elastic Arteries → Their recoil helps with blood movement.
b. Muscular Arteries → Contain a large amount of cardiac muscle in their
tunica media.
c. Arterioles → Have the largest influence on overall blood pressure.
d. Veins → Have much thinner walls compared to arteries.
e. Metarteriole → Contains a precapillary sphincter that regulates blood flow
into a capillary bed.
Correct Answer: b. Muscular Arteries → Contain a large amount of cardiac
muscle in their tunica media.
Rationale: Muscular arteries have smooth muscle, not cardiac muscle, in their
tunica media. The other matches are correct.
Objective: Differentiate types of arteries based on structural characteristics.
4) What is the benefit of forming an anastomosis?
Options:
a. Prevents collateral circulation.
b. Act as nozzles to regulate blood entering capillaries.
c. Prevent backflow of blood in arteries.
d. Allows for an alternative route of blood to an organ if a blood vessel
, becomes blocked.
e. Increase the rate of diffusion of nutrients and gases.
Correct Answer: d. Allows for an alternative route of blood to an organ if a
blood vessel becomes blocked.
Rationale: Anastomoses create collateral circulation to ensure blood supply if
one vessel is blocked.
Objective: Explain the function of vascular anastomoses in circulation.
5) Which is not matched up with a general characteristic?
Options:
a. Capillaries → Composed of a single layer of endothelial cells with a
basement membrane.
b. Continuous Capillaries → Except at intercellular clefts, do not contain holes.
c. Fenestrated Capillaries → Found in kidneys, small intestine, and endocrine
glands.
d. Sinusoid Capillaries → Allow very large molecules (e.g., RBCs) to pass.
e. All of the above are matched with their general characteristics.
Correct Answer: e. All of the above are matched with their general
characteristics.
Rationale: All matches are correct; capillary types and characteristics are
accurately described.
Objective: Identify types of capillaries and their structural characteristics.
Answers, Rationale & Objectives – Human Anatomy &
Physiology II for Nursing & Medical Students 2026
This document contains A&P II Exam #2 practice questions (2026) with correct
answers, detailed rationales, and learning objectives. It covers the cardiovascular,
lymphatic, immune, and respiratory systems, providing a thorough review for nursing,
pre-med, and allied health students preparing for exams.
A&P II Exam #2 – Practice Test with 100% Correct Answers (2026)
1) Which of the following is false regarding blood vessels?
Options:
a. They are dynamic structures.
b. Part of the cardiovascular system.
c. Capillaries are the site of gas and nutrient exchange.
d. Arteries carry blood away from the heart.
e. All of the above are true.
Correct Answer: e. All of the above are true.
,Rationale: All listed statements about blood vessels are true. Blood vessels
are dynamic, part of the cardiovascular system, capillaries exchange gases and
nutrients, and arteries carry blood away from the heart.
Objective: Identify the general properties of blood vessels.
2) Which statement(s) is/are true regarding the 3 layers that make blood
vessels?
Options:
a. The tunica media is the dynamic portion of the vessel that will dilate and
constrict.
b. The tunica intima is composed of one layer of endothelium.
c. The tunica externa anchors the blood vessel through elastic and collagen
fibers.
d. A and B
e. A, B, and C
Correct Answer: e. A, B, and C
Rationale:
Tunica media: controls vasoconstriction/vasodilation.
Tunica intima: one endothelial layer.
Tunica externa: structural support with elastic and collagen fibers. All
statements are correct.
Objective: Understand the structure and function of the three layers of blood
vessels.
,3) Which is not matched up with a general characteristic?
Options:
a. Elastic Arteries → Their recoil helps with blood movement.
b. Muscular Arteries → Contain a large amount of cardiac muscle in their
tunica media.
c. Arterioles → Have the largest influence on overall blood pressure.
d. Veins → Have much thinner walls compared to arteries.
e. Metarteriole → Contains a precapillary sphincter that regulates blood flow
into a capillary bed.
Correct Answer: b. Muscular Arteries → Contain a large amount of cardiac
muscle in their tunica media.
Rationale: Muscular arteries have smooth muscle, not cardiac muscle, in their
tunica media. The other matches are correct.
Objective: Differentiate types of arteries based on structural characteristics.
4) What is the benefit of forming an anastomosis?
Options:
a. Prevents collateral circulation.
b. Act as nozzles to regulate blood entering capillaries.
c. Prevent backflow of blood in arteries.
d. Allows for an alternative route of blood to an organ if a blood vessel
, becomes blocked.
e. Increase the rate of diffusion of nutrients and gases.
Correct Answer: d. Allows for an alternative route of blood to an organ if a
blood vessel becomes blocked.
Rationale: Anastomoses create collateral circulation to ensure blood supply if
one vessel is blocked.
Objective: Explain the function of vascular anastomoses in circulation.
5) Which is not matched up with a general characteristic?
Options:
a. Capillaries → Composed of a single layer of endothelial cells with a
basement membrane.
b. Continuous Capillaries → Except at intercellular clefts, do not contain holes.
c. Fenestrated Capillaries → Found in kidneys, small intestine, and endocrine
glands.
d. Sinusoid Capillaries → Allow very large molecules (e.g., RBCs) to pass.
e. All of the above are matched with their general characteristics.
Correct Answer: e. All of the above are matched with their general
characteristics.
Rationale: All matches are correct; capillary types and characteristics are
accurately described.
Objective: Identify types of capillaries and their structural characteristics.
