Question 1

An increase in blood vessel diameter would lead to a decrease in blood flow.

Accepted Answer

A) True 
 B)False

Question 2

The branch of the external carotid that is responsible for supplying the teeth,gums,nasal cavity,and meninges is the _____ artery.

Accepted Answer

A)  jugular
B)  maxillary
C)  lingual
D)  occipital
E)  internal carotidF) A) and E)
G) All of the above

Question 3

The largest arteries of the body are classified as

Accepted Answer

A)  muscular arteries.
B)  arterioles.
C)  elastic arteries.
D)  muscular and elastic because they have the same dimensions.
E)  None of the answers is correct.F) All of the above
G) B) and C)

Question 4

Blood pressure is lowest in

Accepted Answer

A)  arteries.
B)  veins.
C)  arterioles.
D)  venules.
E)  capillaries.F) C) and E)
G) A) and E)

Question 5

Circulation to the spleen demonstrates a(n)

Accepted Answer

A)  simple pathway,as one artery delivers blood and one vein drains the organ.
B)  simple pathway,as its two capillary beds are separated by a portal vein.
C)  anastomosis,as one artery delivers blood and one vein drains the organ.
D)  anastomosis,as its two capillary beds are separated by a portal vein.E) A) and B)
F) A) and C)

Question 6

The pulmonary trunk carries

Accepted Answer

A)  oxygenated blood from the left ventricle toward the lungs.
B)  oxygenated blood from the right ventricle toward the lungs.
C)  oxygenated blood from the lungs toward the left atrium of the heart.
D)  deoxygenated blood from the right ventricle toward the lungs.
E)  deoxygenated blood from the lungs to the right atrium of the heart.F) A) and B)
G) A) and C)

Question 7

Atherosclerosis involves a

Accepted Answer

A)  sustained increase in blood flow that leads to decreases in venous resistance to keep blood pressure constant.
B)  sustained increase in resistance that leads to increases in arterial pressure to maintain adequate blood flow.
C)  sustained decrease in resistance that leads to decreases in arterial pressure to maintain adequate blood flow.
D)  sustained decrease in blood flow that leads to increases in arterial diameter to lower resistance and raise pressure.
E)  sustained increase in blood pressure that leads to compensatory vasodilation.F) A) and C)
G) B) and D)

Question 8

The inferior mesenteric artery supplies blood to the

Accepted Answer

A)  transverse colon.
B)  transverse colon and descending colon.
C)  sigmoid colon.
D)  sigmoid colon and ascending colon.
E)  transverse colon,descending colon,sigmoid colon,and rectum.F) B) and D)
G) C) and E)

Question 9

A portal system

Accepted Answer

A)  includes a functional end artery that makes an arterial anastomosis.
B)  is a simple circulatory system with an areriovenous anastomosis.
C)  is one in which blood flows through two capillary beds before being sent back to the heart.
D)  is one in which circulation to a large organ involves only one artery and one main (portal) vein.
E)  is one in which multiple arteries converge on one organ or body region.F) A) and E)
G) B) and D)

Question 10

Blood velocity is measured in _________ and is generally _________ related to total cross-sectional area of blood vessels.

Accepted Answer

A)  cm/second;directly
B)  cm/second;inversely
C)  liter/min;directly
D)  liter/min;inverselyE) A) and D)
F) None of the above

Question 11

After birth,the remnant of the umbilical vein becomes the

Accepted Answer

A)  fossa ovalis.
B)  ligamentum arteriosum.
C)  ligamentum teres.
D)  ligamentum venosum.
E)  medial umbilical ligament.F) A) and D)
G) A) and C)

Question 12

The femoral vein becomes the external iliac vein when it

Accepted Answer

A)  merges with the popliteal vein.
B)  merges with the internal iliac vein.
C)  passes above the inguinal ligament.
D)  passes above the tenth thoracic vertebra.E) A) and D)
F) None of the above

Question 13

Which carries blood from the liver to the inferior vena cava

Accepted Answer

A)  Hepatic portal vein
B)  Splenic vein
C)  Inferior mesenteric vein
D)  Superior mesenteric vein
E)  Hepatic veinsF) B) and D)
G) All of the above

Question 14

Imagine yourself sitting in an awkward position in an uncomfortable chair that is depriving part of your leg from normal blood flow.This deprivation of adequate perfusion will result in what sort of local changes in your leg

Accepted Answer

A)  Decreases in carbon dioxide and hydrogen ions will cause vasodilation.
B)  Buildup of carbon dioxide and hydrogen ions will cause vasoconstriction.
C)  Buildup of carbon dioxide and hydrogen ions will cause vasodilation.
D)  Decreases in oxygen and potassium will cause vasoconstriction.
E)  Increases in oxygen and potassium will cause vasodilation.F) B) and C)
G) B) and E)

Question 15

Pulmonary veins carry blood toward the left atrium of the heart.

Accepted Answer

A) True 
 B)False

Question 16

Blood colloid osmotic pressure is largely due to

Accepted Answer

A)  the proteins in the blood,and it promotes reabsorption.
B)  the high amount of water in the blood,and it promotes diffusion out of the capillaries.
C)  the proteins in the blood,and it promotes filtration.
D)  the pressure generated by the heart,and it favors osmosis into the arteriole end of the capillary bed.
E)  the high amount of water in the blood,and it promotes filtration from arterioles.F) A) and E)
G) A) and D)

Question 17

Precapillary sphincters will

Accepted Answer

A)  control blood flow into the true capillaries.
B)  cause blood to flow directly from the metarteriole into the postcapillary venule.
C)  open when the tissue needs nutrients.
D)  close when the tissue's needs have been met.
E)  All of the answers are correct.F) A) and E)
G) A) and D)

Question 18

-In the figure showing an anterior view of the veins,number 4 indicates the

Accepted Answer

A)  left common iliac vein.
B)  left cephalic vein.
C)  left basilic vein.
D)  left brachiocephalic vein.
E)  left internal jugular vein.F) None of the above
G) C) and D)

Question 19

To prevent excessive blood loss following tissue damage,local chemicals such as

Accepted Answer

A)  bradykinins are released to trigger vasoconstriction.
B)  nitric oxides are released to trigger vasoconstriction.
C)  thromboxanes are released to trigger vasoconstriction.
D)  prostaglandins are released to trigger vasodilation.
E)  vasopressins are released to trigger vasodilation.F) A) and B)
G) C) and E)

Question 20

If someone suffered from hypertension,such that the blood pressure in their capillaries was elevated,then net filtration pressure would be

Accepted Answer

A)  above normal.
B)  below normal.C) A) and B)
D) undefined

Exam 20: Cardiovascular System: Vessels and Circulation

If someone suffered from hypertension,such that the blood pressure in their capillaries was elevated,then net filtration pressure would be

Correct AnswerverifiedShow Answer

-In the figure showing an anterior view of the veins,number 4 indicates the

Correct AnswerverifiedShow Answer

Atherosclerosis involves a

Correct AnswerverifiedShow Answer

To prevent excessive blood loss following tissue damage,local chemicals such as

Correct AnswerverifiedShow Answer

Precapillary sphincters will

Correct AnswerverifiedShow Answer

The femoral vein becomes the external iliac vein when it

Correct AnswerverifiedShow Answer

The inferior mesenteric artery supplies blood to the

Correct AnswerverifiedShow Answer

A portal system

Correct AnswerverifiedShow Answer

Which carries blood from the liver to the inferior vena cava

Correct AnswerverifiedShow Answer

Blood pressure is lowest in

Correct AnswerverifiedShow Answer

After birth,the remnant of the umbilical vein becomes the

Correct AnswerverifiedShow Answer

Imagine yourself sitting in an awkward position in an uncomfortable chair that is depriving part of your leg from normal blood flow.This deprivation of adequate perfusion will result in what sort of local changes in your leg

Correct AnswerverifiedShow Answer

The largest arteries of the body are classified as

Correct AnswerverifiedShow Answer

Pulmonary veins carry blood toward the left atrium of the heart.

Correct AnswerverifiedShow Answer

The branch of the external carotid that is responsible for supplying the teeth,gums,nasal cavity,and meninges is the _____ artery.

Correct AnswerverifiedShow Answer

The pulmonary trunk carries

Correct AnswerverifiedShow Answer

Circulation to the spleen demonstrates a(n)

Correct AnswerverifiedShow Answer

An increase in blood vessel diameter would lead to a decrease in blood flow.

Correct AnswerverifiedShow Answer

Blood colloid osmotic pressure is largely due to

Correct AnswerverifiedShow Answer

Blood velocity is measured in _________ and is generally _________ related to total cross-sectional area of blood vessels.

Correct AnswerverifiedShow Answer

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Blood velocity is measured in _ and is generally _ related to total cross-sectional area of blood vessels.

Correct Answer
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