Question 1

When baroreceptors sense a drop in blood pressure, the vasomotor center responds by:

Accepted Answer

A)   suppressing cardiac function
B)   reducing vasomotor tone
C)   triggering peripheral vasodilation
D)   triggering peripheral vasoconstrictionE) A) and D)
F) A) and C)

Question 2

The _____ begins with capillaries in the abdominal viscera and ends with capillaries in the liver.

Accepted Answer

A)   superior mesenteric system
B)   celiac system
C)   hepatic portal system
D)   hepatic vein
E)   splenic systemF) A) and B)
G) B) and D)

Question 3

Which of the following arteries is part of a circulatory pathway to the brain?

Accepted Answer

A)   radial artery
B)   cephalic artery
C)   internal carotid artery
D)   external jugular vein
E)   axillary arteryF) B) and E)
G) C) and D)

Question 4

Match the term with the best description.
-continuous capillaries

Accepted Answer

A)  simple squamous epithelium of capillaries
B)  drain capillary networks
C)  regulate blood flow into capillaries
D)  do not have fenestrae
E)  bypass capillary bedsF) A) and E)
G) D) and E)

Question 5

Which of the following would occur as a person goes into shock?

Accepted Answer

A)   Baroreceptors are stimulated.
B)   Chemoreceptors are depressed.
C)   Renin release is inhibited.
D)   Parasympathetic stimulation is increased.
E)   Sympathetic stimulation is decreased.F) B) and E)
G) A) and B)

Question 6

Systemic circulation

Accepted Answer

A)   carries blood from the right ventricle to the lungs.
B)   includes all arteries but the veins are part of the pulmonary circulation pathway.
C)   includes the aorta and all of its branches.
D)   ends in capillaries of the toes.
E)   includes blood flow to the body, but not the brain.F) A) and C)
G) C) and E)

Question 7

Atrial natriuretic factor

Accepted Answer

A)   is released in response to elevated atrial pressure.
B)   stimulates the release of ADH.
C)   decreases urine production.
D)   stimulates release of aldosterone.
E)   increases blood volume.F) C) and D)
G) D) and E)

Question 8

Which type of veins connect two primary capillary networks?

Accepted Answer

A)   portal veins
B)   venous sinuses
C)   venules
D)   vaso vasorumE) None of the above
F) B) and C)

Question 9

According to Poiseuille's law,

Accepted Answer

A)   blood flow is not related to resistance.
B)   pH of the blood influences flow.
C)   viscosity of the blood is not related to flow.
D)   if resistance increases, flow increases.
E)   if resistance increases, flow decreases.F) A) and B)
G) A) and C)

Question 10

What structure helps to regulate body temperature?

Accepted Answer

A)   glomus
B)   tunic
C)   fenestrae
D)   metarterioleE) C) and D)
F) None of the above

Question 11

The kidneys are supplied by the

Accepted Answer

A)   renal arteries.
B)   suprarenal arteries.
C)   lumbar arteries.
D)   inferior mesenteric arteries.E) None of the above
F) A) and B)

Question 12

The vasa vasorum

Accepted Answer

A)   are incompetent valves in the large veins.
B)   are special capillaries that supply nutrients to the walls of arteries and veins.
C)   are the blood vessels that supply blood to the vas deferens.
D)   are blood vessels that directly connect arteries to veins.
E)   supply blood to skeletal muscle.F) A) and E)
G) A) and B)

Question 13

Match the following with the appropriate description.
-basilar artery

Accepted Answer

A)  formed when the right and left vertebral arteries unite
B)  supplies blood to the face, nose, and mouth
C)  terminates by forming the middle cerebral arteries
D)  supplies blood to the arm and shoulder regions
E)  sense organs that monitor blood pressureF) None of the above
G) B) and D)

Question 14

As viscosity of the blood increases,

Accepted Answer

A)   the pressure required to force it to flow increases.
B)   the pressure required to force it to flow decreases.
C)   the fluid becomes thinner.
D)   the hematocrit decreases.
E)   the flow does not change.F) A) and E)
G) B) and D)

Question 15

Match the term with the appropriate description.
-stroke

Accepted Answer

A)  dead tissue
B)  a floating clot
C)  sudden decreased blood supply to a part of the brain
D)  a stationary clot
E)  a localized area of dead cells resulting from ischemiaF) D) and E)
G) A) and B)

Question 16

The vein that ascends along the medial side of the lower limb to the femoral vein is the ____ saphenous vein and the vein that ascends along the posterior aspect of the leg to the popliteal vein is the _____ saphenous vein.

Accepted Answer

A)   small; great
B)   internal; external
C)   external; internal
D)   great; smallE) All of the above
F) B) and C)

Question 17

Arteriosclerosis is characterized by

Accepted Answer

A)   a thickening of the tunica adventitia.
B)   increased elasticity of the tunica media.
C)   decreased resistance to blood flow.
D)   an enlargement of the lumen of the vessel.
E)   thickening of the tunica intima and loss of elasticity in the tunica media.F) A) and E)
G) A) and C)

Question 18

The visceral branches of the internal iliac arteries supply blood to the

Accepted Answer

A)   external genitalia.
B)   urinary bladder, rectum, and reproductive organs.
C)   lower leg.
D)   anterior abdominal wall.
E)   lumbar and gluteal muscles.F) C) and E)
G) B) and C)

Question 19

Which of the following would increase resistance to blood flow?

Accepted Answer

A)   a decrease in the length of the vessel
B)   a decrease in the number of red blood cells
C)   a decrease in blood viscosity
D)   a decrease in the radius of the vessel
E)   a decreased hematocritF) B) and C)
G) All of the above

Question 20

Match the term with the appropriate description.
-thrombosis

Accepted Answer

A)  dead tissue
B)  a floating clot
C)  sudden decreased blood supply to a part of the brain
D)  a stationary clot
E)  a localized area of dead cells resulting from ischemiaF) B) and C)
G) A) and E)

Exam 21: Cardiovascular System: Blood Vessels and Circulation

Which of the following would occur as a person goes into shock?

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The kidneys are supplied by the

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Atrial natriuretic factor

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Which of the following arteries is part of a circulatory pathway to the brain?

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Match the following with the appropriate description. -basilar artery

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The vasa vasorum

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When baroreceptors sense a drop in blood pressure, the vasomotor center responds by:

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Systemic circulation

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Match the term with the appropriate description. -thrombosis

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The _____ begins with capillaries in the abdominal viscera and ends with capillaries in the liver.

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Arteriosclerosis is characterized by

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What structure helps to regulate body temperature?

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Which type of veins connect two primary capillary networks?

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Which of the following would increase resistance to blood flow?

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The visceral branches of the internal iliac arteries supply blood to the

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Match the term with the appropriate description. -stroke

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The vein that ascends along the medial side of the lower limb to the femoral vein is the ____ saphenous vein and the vein that ascends along the posterior aspect of the leg to the popliteal vein is the _____ saphenous vein.

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As viscosity of the blood increases,

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According to Poiseuille's law,

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Match the term with the best description. -continuous capillaries

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The vein that ascends along the medial side of the lower limb to the femoral vein is the saphenous vein and the vein that ascends along the posterior aspect of the leg to the popliteal vein is the _ saphenous vein.

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