Question 1

Capillaries have the slowest velocity because

Accepted Answer

A)  the total cross-sectional area is the smallest.
B)  the resistance is the greatest.
C)  the total cross-sectional area is the largest.
D)  their diameters are the smallest.E) B) and C)
F) A) and C)

Question 2

During exchange at the capillaries,what can cross the endothelial cells,diffusing through the plasma membranes?

Accepted Answer

A)   Proteins
B)   Large water-soluble substances
C)   Hormones
D)   Red blood cells
E)   Lipid-soluble substancesF) D) and E)
G) A) and D)

Question 3

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 E)
G) A) and B)

Question 4

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 ischemia,F) None of the above
G) A) and E)

Question 5

A blood pressure reading of 120/80 would

Accepted Answer

A)  indicate a diastolic pressure of 120 mm Hg.
B)  have Korotkoff sounds at pressures above 120 mm Hg.
C)  indicate a systolic pressure of 120 mm Hg.
D)  indicate a systolic pressure of 80 mm Hg.
E)  would be considered hypertensive.F) B) and E)
G) D) and E)

Question 6

The lining of a capillary is called the

Accepted Answer

A)  endothelium.
B)  adventitia.
C)  pericapillary layer.
D)  thoroughfare layer.
E)  tunica adventitia.F) B) and C)
G) B) and D)

Question 7

Which of the following organs would be most likely to contain fenestrated capillaries?

Accepted Answer

A)  spleen
B)  kidney
C)  bone marrow
D)  muscle
E)  pancreasF) B) and C)
G) A) and E)

Question 8

Which of the following functions is associated with vessels that carry blood directly from arterioles to veins without passing through capillaries?

Accepted Answer

A)  thermoregulation
B)  nutrient supply to tissues
C)  removal of metabolic waste products from tissues
D)  oxygen supply to tissues
E)  pH regulationF) All of the above
G) A) and C)

Question 9

A vein responsible for draining blood from the upper limb is the

Accepted Answer

A)  azygos vein.
B)  portal vein.
C)  cephalic vein.
D)  peroneal vein.
E)  common iliac vein.F) A) and E)
G) B) and C)

Question 10

Match the vessel with the appropriate description.
-cerebral arterial circle

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) A) and D)
G) None of the above

Question 11

All of the following can serve as vasodilators,except

Accepted Answer

A)   Lactic acid
B)   AMP
C)   EDRF
D)   Carbon dioxide
E)   OxygenF) D) and E)
G) A) and D)

Question 12

Match the vessel with the appropriate description.
-middle cerebral 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) A) and E)
G) A) and D)

Question 13

How would you describe the streamlined movement of blood through a vessel?

Accepted Answer

A)   Turbulent flow
B)   Mercurial flow
C)   Blood viscosity
D)   Blood pressure
E)   Laminar flowF) B) and D)
G) A) and D)

Question 14

Hardening of the arteries results in _______ and deposition of plaques in the walls of the arteries results in ______.

Accepted Answer

A)   atherosclerosis; arteriosclerosis
B)   atherosclerosis; phlebitis
C)   phlebitis; atherosclerosis
D)   phlebitis; arteriosclerosis
E)   arteriosclerosis; atherosclerosisF) C) and D)
G) B) and C)

Question 15

Urine output usually decreases when a person is in shock.This is the result of

Accepted Answer

A)  decreased ADH secretion.
B)  increased renin secretion.
C)  increased secretion of atrial natriuretic factor.
D)  decreased vasoconstriction due to the stress relaxation response.
E)  decreased aldosterone secretionF) None of the above
G) All of the above

Exam 21: Cardiovascular System: Blood Vessels and Circulation

Urine output usually decreases when a person is in shock.This is the result of

Correct Answer
verified

All of the following can serve as vasodilators,except

Correct Answer
verified

Match the term with the appropriate description. -thrombosis

Correct Answer
verified

Match the vessel with the appropriate description. -middle cerebral artery

Correct Answer
verified

During exchange at the capillaries,what can cross the endothelial cells,diffusing through the plasma membranes?

Correct Answer
verified

Match the vessel with the appropriate description. -cerebral arterial circle

Correct Answer
verified

The lining of a capillary is called the

Correct Answer
verified

Which of the following organs would be most likely to contain fenestrated capillaries?

Correct Answer
verified

Which of the following would increase resistance to blood flow?

Correct Answer
verified

A vein responsible for draining blood from the upper limb is the

Correct Answer
verified

Which of the following functions is associated with vessels that carry blood directly from arterioles to veins without passing through capillaries?

Correct Answer
verified

How would you describe the streamlined movement of blood through a vessel?

Correct Answer
verified

Capillaries have the slowest velocity because

Correct Answer
verified

A blood pressure reading of 120/80 would

Correct Answer
verified

Hardening of the arteries results in _ and deposition of plaques in the walls of the arteries results in .

Correct Answer
verified

Exam 21: Cardiovascular System: Blood Vessels and Circulation

Urine output usually decreases when a person is in shock.This is the result of

Correct AnswerverifiedShow Answer

All of the following can serve as vasodilators,except

Correct AnswerverifiedShow Answer

Match the term with the appropriate description. -thrombosis

Correct AnswerverifiedShow Answer

Match the vessel with the appropriate description. -middle cerebral artery

Correct AnswerverifiedShow Answer

During exchange at the capillaries,what can cross the endothelial cells,diffusing through the plasma membranes?

Correct AnswerverifiedShow Answer

Match the vessel with the appropriate description. -cerebral arterial circle

Correct AnswerverifiedShow Answer

The lining of a capillary is called the

Correct AnswerverifiedShow Answer

Which of the following organs would be most likely to contain fenestrated capillaries?

Correct AnswerverifiedShow Answer

Which of the following would increase resistance to blood flow?

Correct AnswerverifiedShow Answer

A vein responsible for draining blood from the upper limb is the

Correct AnswerverifiedShow Answer

Which of the following functions is associated with vessels that carry blood directly from arterioles to veins without passing through capillaries?

Correct AnswerverifiedShow Answer

How would you describe the streamlined movement of blood through a vessel?

Correct AnswerverifiedShow Answer

Capillaries have the slowest velocity because

Correct AnswerverifiedShow Answer

A blood pressure reading of 120/80 would

Correct AnswerverifiedShow Answer

Hardening of the arteries results in _______ and deposition of plaques in the walls of the arteries results in ______.

Correct AnswerverifiedShow Answer

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verified

Hardening of the arteries results in _ and deposition of plaques in the walls of the arteries results in .

Correct Answer
verified