[A&P II] EXAM #2 -- PRACTICE TEST WITH 100%
CORRECT ANSWERS 2025
1) Which of the following is false regarding blood vessels?
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.
2) Which statement(s) is/are true regarding the 3 layers that make blood vessels?
a. The tunica media is the dynamic portion of the vessel that will dilate and constrict.
b. The tunica intera 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
3) Which is not matched up with a general characteristic?
a. Elastic Arteries-
> Their recoil from stretching during ventricular systole will help 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.
4) What is the benefit of forming an anastomosis?
a. Prevents collateral circulation.
b. Act as nozzles to regulate the amount of blood that enters capillaries.
c. Prevent backflow of blood in arteries.
,d. Allows forVan 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.
5) Which is not matched up with a general characteristic?
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 the kidneys, small intestine, and endocrine glands.
d. Sinusoid Capillaries Allow very large molecules to get through (e.g. RBCs).
e. All of the above are matched with their general characteristics. - correct answer-
e. All of the above are matched with their general characteristics.
6) Which of the following is true regarding veins?
a. Lack valves.
b. Are under greater pressures than arteries.
c. Have large amounts of muscle and elastic tissue.
d. Utilize skeletal and respiratory pumps to return blood back to the heart.
e. None of the above are true. - correct answer-
d. Utilize skeletal and respiratory pumps to return blood back to the heart.
7) Which of the following contains the greatest percentage of total blood volume?
a. Heart.
b. Pulmonary vessels.
c. Systemic arteries and arterioles.
d. Systemic capillaries.
e. Systemic veins and venules. - correct answer-e. Systemic veins and venules.
8) What would cause a decrease in systemic vascular resistance (SVR)?
a. Polycythemia.
b. Decreased body size.
c. Increased blood viscosity.
, d. Increased total blood vessel length.
e. Vasoconstriction. - correct answer-b. Decreased body size.
(lessened vessel length makes it easier)
9) Which of the following is false regarding the receptors that detect changes in blood composition and
pressure?
a. We have baroreceptors in the carotid sinus and aortic arch.
b. We have chemoreceptors in the carotid arteries and aortic bodies.
c. Chemoreceptors and baroreceptors send information to the cardiovascular center in the brain.
d. All of the above are true. - correct answer-d. All of the above are true.
10) What endocrine response would not increase blood pressure and volume?
a. Renin release from the kidney.
b. Antidiuretic hormone (ADH) release.
c. Atrial Naturetic Peptide (ANP) release.
d. All of the above would increase blood pressure and volume. - correct answer-
c. Atrial Naturetic Peptide (ANP) release.
(decreases pressure and volume)
11) Which of the following is false regarding a person's pulse?
a. It is the result of expansion and recoil of elastic arteries after systole.
b. Typically the same as the heart rate.
c. Becomes weaker in vessels far from the heart.
d. Commonly checked in the common carotid or radial artery.
e. All of the above are true. - correct answer-e. All of the above are true.
12) Shock that is caused by a decreased blood volume is
a. Vascular shock
b. Obstructive shock
c. Cardiogenic shock
d. Hypovolemic shock - correct answer-d. Hypovolemic shock
CORRECT ANSWERS 2025
1) Which of the following is false regarding blood vessels?
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.
2) Which statement(s) is/are true regarding the 3 layers that make blood vessels?
a. The tunica media is the dynamic portion of the vessel that will dilate and constrict.
b. The tunica intera 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
3) Which is not matched up with a general characteristic?
a. Elastic Arteries-
> Their recoil from stretching during ventricular systole will help 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.
4) What is the benefit of forming an anastomosis?
a. Prevents collateral circulation.
b. Act as nozzles to regulate the amount of blood that enters capillaries.
c. Prevent backflow of blood in arteries.
,d. Allows forVan 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.
5) Which is not matched up with a general characteristic?
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 the kidneys, small intestine, and endocrine glands.
d. Sinusoid Capillaries Allow very large molecules to get through (e.g. RBCs).
e. All of the above are matched with their general characteristics. - correct answer-
e. All of the above are matched with their general characteristics.
6) Which of the following is true regarding veins?
a. Lack valves.
b. Are under greater pressures than arteries.
c. Have large amounts of muscle and elastic tissue.
d. Utilize skeletal and respiratory pumps to return blood back to the heart.
e. None of the above are true. - correct answer-
d. Utilize skeletal and respiratory pumps to return blood back to the heart.
7) Which of the following contains the greatest percentage of total blood volume?
a. Heart.
b. Pulmonary vessels.
c. Systemic arteries and arterioles.
d. Systemic capillaries.
e. Systemic veins and venules. - correct answer-e. Systemic veins and venules.
8) What would cause a decrease in systemic vascular resistance (SVR)?
a. Polycythemia.
b. Decreased body size.
c. Increased blood viscosity.
, d. Increased total blood vessel length.
e. Vasoconstriction. - correct answer-b. Decreased body size.
(lessened vessel length makes it easier)
9) Which of the following is false regarding the receptors that detect changes in blood composition and
pressure?
a. We have baroreceptors in the carotid sinus and aortic arch.
b. We have chemoreceptors in the carotid arteries and aortic bodies.
c. Chemoreceptors and baroreceptors send information to the cardiovascular center in the brain.
d. All of the above are true. - correct answer-d. All of the above are true.
10) What endocrine response would not increase blood pressure and volume?
a. Renin release from the kidney.
b. Antidiuretic hormone (ADH) release.
c. Atrial Naturetic Peptide (ANP) release.
d. All of the above would increase blood pressure and volume. - correct answer-
c. Atrial Naturetic Peptide (ANP) release.
(decreases pressure and volume)
11) Which of the following is false regarding a person's pulse?
a. It is the result of expansion and recoil of elastic arteries after systole.
b. Typically the same as the heart rate.
c. Becomes weaker in vessels far from the heart.
d. Commonly checked in the common carotid or radial artery.
e. All of the above are true. - correct answer-e. All of the above are true.
12) Shock that is caused by a decreased blood volume is
a. Vascular shock
b. Obstructive shock
c. Cardiogenic shock
d. Hypovolemic shock - correct answer-d. Hypovolemic shock
