Question 1

Factors that aid venous return include all except ________.

Accepted Answer

A)  venous valves
B)  activity of skeletal muscles
C)  pressure changes in the thorax
D)  urinary outputE) None of the above
F) All of the above

Question 2

The adjustment of blood flow to each tissue in proportion to its requirements at any point in time is termed autoregulation.

Accepted Answer

A) True 
 B)False

Question 3

Whereas diffusion is more important for solute exchange between plasma and interstitial fluid,bulk flow is more important for regulation of the relative volumes of blood and interstitial fluid.

Accepted Answer

A) True 
 B)False

Question 4

Atherosclerosis is a progressive disease of blood vessels that is responsible for millions of deaths each year.Describe the disease process,noting the involvement of specific cell/tissue types and molecules.

Accepted Answer

The disease process involves several sta...

Question 5

Describe the effect of hypovolemic shock on the blood vessels and the heart.

Accepted Answer

Hypovolemic shock causes blood vessels t...

Question 6

Which of the following signs of hypovolemic shock is a relatively late sign?

Accepted Answer

A)  increased heart rate
B)  cold,clammy skin
C)  rapidly falling blood pressure
D)  rapid,thready pulseE) A) and B)
F) A) and C)

Question 7

A patient lost a lot of blood during surgery and his blood pressure dropped from 120/80 to 90/50.Describe how the kidneys respond to this change in blood pressure.

Accepted Answer

When arterial blood pressure declines,sp...

Question 8

Which of the choices below explains why the arterioles are known as resistance vessels?

Accepted Answer

A)  The contraction and relaxation of the smooth muscle in their walls can change their diameter.
B)  They contain a large quantity of elastic tissue.
C)  They distribute blood to various parts of the body.
D)  Their prime function is the exchange of nutrients and wastes between the blood and tissue cells.E) None of the above
F) B) and C)

Question 9

At the battle of Shiloh in the American Civil War,Confederate General A.S.Johnston was killed when he was shot in the thigh.Witnesses reported that he bled to death almost before he realized that he was wounded.Which blood vessel was most likely to have been injured? Why is a tourniquet usually ineffective in stopping the bleeding from this wound?

Accepted Answer

The wound severed his femoral artery,the...

Question 10

Which of the following best describes the benefit of the vasomotion process?

Accepted Answer

A)  It provides a balance between adequate perfusion to all of the tissues while maintaining blood's pressure.
B)  It allows for rapid increase in blood flow to vital organs during fight or flight response.
C)  It decreases hydrostatic pressure while also increasing osmotic pressure to enhance reabsorption.
D)  It lowers blood's pressure by reducing the distribution of blood flow to all of the tissues in the capillary bed.E) A) and B)
F) B) and C)

Question 11

For each of the following situations,describe the anticipated effect on blood pressure and the physiological basis of the response: (1)a high-salt diet,(2)a blow on the head that damages (disables)the vasomotor center,(3)an attack by a mugger,and (4)a hypothalamic tumor resulting in excess ADH production.

Accepted Answer

(1)A high-salt diet causes increased sod...

Question 12

Define vasoconstriction and vasodilation.What is the mechanism of regulation?

Accepted Answer

Vasoconstriction is a reduction in the l...

Question 13

Which statement best describes arteries?

Accepted Answer

A)  Only large arteries are lined with endothelium.
B)  All contain valves to prevent the backflow of blood.
C)  All carry blood away from the heart.
D)  All carry oxygenated blood to the heart.E) A) and D)
F) A) and B)

Question 14

If a person stands up suddenly from the prone (lying) position they may feel a sudden dizzy or lightheadedness.Which of the following is the least likely physiological response to this situation?

Accepted Answer

A)  increased sympathetic output to the heart
B)  faster heart rate and greater heart contractility
C)  increased parasympathetic nerve impulses to the heart
D)  increasing peripheral resistance due to vasoconstrictionE) None of the above
F) A) and B)

Question 15

If a person were to have substantial blood loss you would expect to see all of the following physiological events to except one.Select the least likely response to substantial blood loss.

Accepted Answer

A)  increasing vasomotor tone
B)  decreased heart rate
C)  increases peripheral resistance
D)  a weak,thread pulseE) A) and D)
F) A) and C)

Question 16

The short-term controls of blood pressure,mediated by the nervous system and bloodborne chemicals,primarily operate via all but which of the following?

Accepted Answer

A)  chemoreceptors
B)  altering blood volume
C)  reflex arcs involving baroreceptors
D)  reflex arcs associated with vasomotor fibersE) B) and C)
F) B) and D)

Question 17

A drug that restricts the activity of angiotensin converting enzyme (ACE) would like result in all of the following physiologic changes but one.Which of the following is the least likely to result from a drug blocking ACE activity?

Accepted Answer

A)  decreased peripheral resistance due to decreases vasomotor tone
B)  lower levels of circulating aldosterone and lowered sodium reabsorption
C)  increased thirst and higher blood volume
D)  increased urine output due to reduction in circulating antidiuretic hormone (ADH) E) None of the above
F) A) and C)

Question 18

What do the ductus arteriosus and the foramen ovale become at birth?

Accepted Answer

A)  ligamentum arteriosum; fossa ovalis
B)  ligamentum teres; fossa ovalis
C)  fossa ovalis; ligamentum arteriosum
D)  ligamentum arteriosum; ligamentum teresE) All of the above
F) B) and C)

Question 19

The influence of blood vessel diameter on peripheral resistance is ________.

Accepted Answer

A)  significant because resistance is inversely proportional to the fourth power of the vessel radius
B)  significant because resistance is directly proportional to the blood vessel diameter
C)  insignificant because vessel diameter does not vary
D)  the only factor that influences resistanceE) B) and D)
F) A) and B)

Question 20

Which of the following would not be expected from taking a diuretic drug?

Accepted Answer

A)  decreased blood pressure
B)  greater stress on the heart to provide adequate perfusion
C)  increased urine output
D)  lower plasma volumeE) B) and D)
F) All of the above

Exam 19: The Cardiovascular System: Blood Vessels

Correct Answer
verified
The wound severed his femoral artery,the...
View Answer

Which of the following best describes the benefit of the vasomotion process?

Correct Answer
verified

If a person were to have substantial blood loss you would expect to see all of the following physiological events to except one.Select the least likely response to substantial blood loss.

Correct Answer
verified

Which of the following signs of hypovolemic shock is a relatively late sign?

Correct Answer
verified

Correct Answer
verified
(1)A high-salt diet causes increased sod...
View Answer

If a person stands up suddenly from the prone (lying) position they may feel a sudden dizzy or lightheadedness.Which of the following is the least likely physiological response to this situation?

Correct Answer
verified

A drug that restricts the activity of angiotensin converting enzyme (ACE) would like result in all of the following physiologic changes but one.Which of the following is the least likely to result from a drug blocking ACE activity?

Correct Answer
verified

Describe the effect of hypovolemic shock on the blood vessels and the heart.

Correct Answer
verified
Hypovolemic shock causes blood vessels t...
View Answer

What do the ductus arteriosus and the foramen ovale become at birth?

Correct Answer
verified

A patient lost a lot of blood during surgery and his blood pressure dropped from 120/80 to 90/50.Describe how the kidneys respond to this change in blood pressure.

Correct Answer
verified
When arterial blood pressure declines,sp...
View Answer

The influence of blood vessel diameter on peripheral resistance is ________.

Correct Answer
verified

Which of the following would not be expected from taking a diuretic drug?

Correct Answer
verified

Atherosclerosis is a progressive disease of blood vessels that is responsible for millions of deaths each year.Describe the disease process,noting the involvement of specific cell/tissue types and molecules.

Correct Answer
verified
The disease process involves several sta...
View Answer

The short-term controls of blood pressure,mediated by the nervous system and bloodborne chemicals,primarily operate via all but which of the following?

Correct Answer
verified

The adjustment of blood flow to each tissue in proportion to its requirements at any point in time is termed autoregulation.

Correct Answer
verified

Define vasoconstriction and vasodilation.What is the mechanism of regulation?

Correct Answer
verified
Vasoconstriction is a reduction in the l...
View Answer

Factors that aid venous return include all except ________.

Correct Answer
verified

Which of the choices below explains why the arterioles are known as resistance vessels?

Correct Answer
verified

Which statement best describes arteries?

Correct Answer
verified

Whereas diffusion is more important for solute exchange between plasma and interstitial fluid,bulk flow is more important for regulation of the relative volumes of blood and interstitial fluid.

Correct Answer
verified

Exam 19: The Cardiovascular System: Blood Vessels

Correct AnswerverifiedThe wound severed his femoral artery,the...View AnswerShow Answer

Which of the following best describes the benefit of the vasomotion process?

Correct AnswerverifiedShow Answer

If a person were to have substantial blood loss you would expect to see all of the following physiological events to except one.Select the least likely response to substantial blood loss.

Correct AnswerverifiedShow Answer

Which of the following signs of hypovolemic shock is a relatively late sign?

Correct AnswerverifiedShow Answer

Correct Answerverified(1)A high-salt diet causes increased sod...View AnswerShow Answer

If a person stands up suddenly from the prone (lying) position they may feel a sudden dizzy or lightheadedness.Which of the following is the least likely physiological response to this situation?

Correct AnswerverifiedShow Answer

A drug that restricts the activity of angiotensin converting enzyme (ACE) would like result in all of the following physiologic changes but one.Which of the following is the least likely to result from a drug blocking ACE activity?

Correct AnswerverifiedShow Answer

Describe the effect of hypovolemic shock on the blood vessels and the heart.

Correct AnswerverifiedHypovolemic shock causes blood vessels t...View AnswerShow Answer

What do the ductus arteriosus and the foramen ovale become at birth?

Correct AnswerverifiedShow Answer

A patient lost a lot of blood during surgery and his blood pressure dropped from 120/80 to 90/50.Describe how the kidneys respond to this change in blood pressure.

Correct AnswerverifiedWhen arterial blood pressure declines,sp...View AnswerShow Answer

The influence of blood vessel diameter on peripheral resistance is ________.

Correct AnswerverifiedShow Answer

Which of the following would not be expected from taking a diuretic drug?

Correct AnswerverifiedShow Answer

Atherosclerosis is a progressive disease of blood vessels that is responsible for millions of deaths each year.Describe the disease process,noting the involvement of specific cell/tissue types and molecules.

Correct AnswerverifiedThe disease process involves several sta...View AnswerShow Answer

The short-term controls of blood pressure,mediated by the nervous system and bloodborne chemicals,primarily operate via all but which of the following?

Correct AnswerverifiedShow Answer

The adjustment of blood flow to each tissue in proportion to its requirements at any point in time is termed autoregulation.

Correct AnswerverifiedShow Answer

Define vasoconstriction and vasodilation.What is the mechanism of regulation?

Correct AnswerverifiedVasoconstriction is a reduction in the l...View AnswerShow Answer

Factors that aid venous return include all except ________.

Correct AnswerverifiedShow Answer

Which of the choices below explains why the arterioles are known as resistance vessels?

Correct AnswerverifiedShow Answer

Which statement best describes arteries?

Correct AnswerverifiedShow Answer

Whereas diffusion is more important for solute exchange between plasma and interstitial fluid,bulk flow is more important for regulation of the relative volumes of blood and interstitial fluid.

Correct AnswerverifiedShow Answer

Correct Answer
verified
The wound severed his femoral artery,the...
View Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
(1)A high-salt diet causes increased sod...
View Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
Hypovolemic shock causes blood vessels t...
View Answer

Correct Answer
verified

Correct Answer
verified
When arterial blood pressure declines,sp...
View Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
The disease process involves several sta...
View Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
Vasoconstriction is a reduction in the l...
View Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified