Question 1

Which vein drains blood from the left side of the thorax and esophagus into the left brachiocephalic vein?

Accepted Answer

A)  hemiazygos vein
B)  left azygos vein
C)  internal thoracic vein
D)  accessory hemiazygos veinE) A) and B)
F) A) and C)

Question 2

Tracing the blood from the heart to the right hand,blood leaves the heart,passes through the ascending aorta,aortic arch,right subclavian artery,axillary and brachial arteries,either the radial or ulnar arteries and palmar arches to arrive at the hand.Which artery is missing in this sequence?

Accepted Answer

A)  cephalic
B)  jugular
C)  brachiocephalic
D)  right common carotid
E)  left subclavian arteryF) A) and D)
G) C) and E)

Question 3

When there is a drop in blood pressure,the body reacts immediately by way of the

Accepted Answer

A)  baroreceptor mechanism.
B)  chemoreceptor mechanism.
C)  CNS ischemic mechanism.
D)  stress-relaxation mechanism.
E)  adrenal medullary mechanism.F) C) and D)
G) All of the above

Question 4

Which coat of an artery contains endothelium?

Accepted Answer

A)  tunica intima
B)  tunica media
C)  tunica adventitia
D)  tunica elastica
E)  tunica intermediaF) A) and E)
G) None of the above

Question 5

Match the following with the appropriate description.
-external carotid 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) A) and D)
G) D) and E)

Question 6

The relationship between the force holding open a vessel and the vessels diameter (Force = diameter x pressure; or F = D x P) is called:

Accepted Answer

A)   Poiseuille's law
B)   Korotkoff's law
C)   Henry's Law
D)   Boyle's law
E)   Laplace's lawF) B) and D)
G) A) and E)

Question 7

Match the vessel with the appropriate description.
-common iliac artery

Accepted Answer

A)  supplies blood to the frontal lobes of the brain
B)  a circle of arteries at the base of the brain
C)  supplies large portions of the lateral cerebral cortex
D)  supplies the posterior portion of the cerebrum
E)  formed by the bifurcation of the abdominal aortaF) C) and D)
G) None of the above

Question 8

When contrasting arteries and veins,which of the following statements is true?

Accepted Answer

A)  Veins have thicker walls than arteries.
B)  Arteries have a thicker tunica media than veins.
C)  Veins have a tunica media while arteries do not.
D)  Arteries have valves,but veins do not.
E)  Arteries have smooth muscle in their walls,but veins do not.F) B) and E)
G) B) and D)

Question 9

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 D)
G) C) and E)

Question 10

Vasoconstriction is caused by ______ stimulation of vascular smooth muscle; ______ stimulation of vascular smooth muscle causes vasodilation.

Accepted Answer

A)   decreased; increased
B)   parasympathetic; sympathetic
C)   sympathetic; increased
D)   parasympathetic; decreased
E)   sympathetic; parasympatheticF) C) and E)
G) A) and B)

Question 11

Which of the following is NOT involved in short-term regulation of blood pressure?

Accepted Answer

A)  baroreceptor reflex
B)  adrenal medullary mechanism
C)  alteration in blood volume
D)  chemoreceptor mechanismE) A) and B)
F) All of the above

Question 12

Match the term with the appropriate description.
-vasa vasorum

Accepted Answer

A)  a bulge (a weak spot) in the artery wall
B)  degenerative changes in arteries
C)  an overstretching of the veins of the lower extremities
D)  inflammation of the veins
E)  small vessels that supply nutrients to large arteries,F) B) and C)
G) B) and E)

Question 13

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) All of the above
G) A) and E)

Question 14

The abdominal aorta divides at L5 to form the two

Accepted Answer

A)  inferior mesenteric arteries.
B)  common iliac arteries.
C)  superior mesenteric arteries.
D)  femoral arteries.
E)  renal arteries.F) A) and B)
G) A) and C)

Question 15

Which of the following arteries sends branches to the stomach and liver?

Accepted Answer

A)  celiac artery
B)  superior mesenteric artery
C)  inferior mesenteric artery
D)  renal artery
E)  splenic arteryF) A) and B)
G) B) and E)

Question 16

Arteries can constrict or dilate as needed because of the smooth muscle found in the

Accepted Answer

A)  tunica intima.
B)  tunica media.
C)  tunica adventitia.
D)  tunica externa.
E)  tunica interna.F) A) and B)
G) A) and C)

Question 17

All of the following are functions of the circulatory system,except

Accepted Answer

A)   carries blood.
B)   regulates blood pressure.
C)   transports nutrients.
D)   directs blood flow to tissues.
E)   excretes wastes.F) A) and E)
G) C) and D)

Question 18

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 C)
G) B) and D)

Question 19

When the blood pressure of a vessel drops below the critical closing pressure for that vessel,

Accepted Answer

A)  there is hypertension.
B)  there is an increase in blood flow.
C)  there is an increase in peripheral resistance.
D)  the vessel collapses.
E)  the vessel expands.F) None of the above
G) A) and E)

Question 20

Match the vessel with the appropriate description.
-thoracic parietal artery

Accepted Answer

A)  supplies blood to the diaphragm
B)  supplies blood to the esophagus
C)  supplies blood to the thoracic wall
D)  supplies blood to the pancreas and small intestine
E)  supplies blood to the stomach,liver,and spleenF) C) and D)
G) A) and B)

Exam 21: Cardiovascular System: Blood Vessels and Circulation

Which of the following is NOT involved in short-term regulation of blood pressure?

Correct AnswerverifiedShow Answer

The relationship between the force holding open a vessel and the vessels diameter (Force = diameter x pressure; or F = D x P) is called:

Correct AnswerverifiedShow Answer

As viscosity of the blood increases,

Correct AnswerverifiedShow Answer

Vasoconstriction is caused by ______ stimulation of vascular smooth muscle; ______ stimulation of vascular smooth muscle causes vasodilation.

Correct AnswerverifiedShow Answer

The abdominal aorta divides at L5 to form the two

Correct AnswerverifiedShow Answer

All of the following are functions of the circulatory system,except

Correct AnswerverifiedShow Answer

When contrasting arteries and veins,which of the following statements is true?

Correct AnswerverifiedShow Answer

When there is a drop in blood pressure,the body reacts immediately by way of the

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

When the blood pressure of a vessel drops below the critical closing pressure for that vessel,

Correct AnswerverifiedShow Answer

Which coat of an artery contains endothelium?

Correct AnswerverifiedShow Answer

Which of the following arteries sends branches to the stomach and liver?

Correct AnswerverifiedShow Answer

Arteries can constrict or dilate as needed because of the smooth muscle found in the

Correct AnswerverifiedShow Answer

Match the vessel with the appropriate description. -common iliac artery

Correct AnswerverifiedShow Answer

Match the term with the appropriate description. -vasa vasorum

Correct AnswerverifiedShow Answer

Which vein drains blood from the left side of the thorax and esophagus into the left brachiocephalic vein?

Correct AnswerverifiedShow Answer

Arteriosclerosis is characterized by

Correct AnswerverifiedShow Answer

Match the vessel with the appropriate description. -thoracic parietal artery

Correct AnswerverifiedShow Answer

Match the following with the appropriate description. -external carotid artery

Correct AnswerverifiedShow Answer

Tracing the blood from the heart to the right hand,blood leaves the heart,passes through the ascending aorta,aortic arch,right subclavian artery,axillary and brachial arteries,either the radial or ulnar arteries and palmar arches to arrive at the hand.Which artery is missing in this sequence?

Correct AnswerverifiedShow Answer

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Vasoconstriction is caused by stimulation of vascular smooth muscle; stimulation of vascular smooth muscle causes vasodilation.

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