Question 1

Baroreceptors are found mainly in the carotid sinus and the ____________________.

Accepted Answer

The answer of Baroreceptors are found mainly in the carotid...

Question 2

Decreased stroke volume _____ cardiac output.

Accepted Answer

The answer of Decreased stroke volume _____ cardiac output....

Question 3

Under which of these conditions will reabsorption occur?

Accepted Answer

A)  when inward-driving pressures exceed outward-driving pressures across the capillary wall
B)  when outward-driving pressures exceed inward-driving pressures across the capillary wall
C)   when the osmolarity of plasma is decreased in the venule end of the capillary
D)   when the outward-driving pressures and the inward-driving pressures across the capillary wall are equalE) A) and B)
F) A) and C)

Question 4

How is salt balance tied into blood pressure control?

Accepted Answer

The answer of How is salt balance tied into blood...

Question 5

Blood flow is driven by ____________________.

Accepted Answer

mean arter...

Question 6

If the diastolic pressure and systolic pressure were both increased by 18 mmHg, then the pulse pressure would be increased by 19 mmHg.

Accepted Answer

A) True 
 B)False

Question 7

Which of these factors would decrease total peripheral resistance?

Accepted Answer

A)  adrenal medulla hormones
B)  angiotensin II
C)   increased haematocrit
D)   anaphylaxisE) None of the above
F) A) and D)

Question 8

How does the vasomotor centre respond to rising H+/CO2?

Accepted Answer

A)  by vasodilating arteries
B)  by vasoconstricting arteries
C)   by increasing respiratory rate
D)   by inhibiting the cardioinhibitory centreE) None of the above
F) C) and D)

Question 9

Match the arteriolar effects, labelled a. through c., with the tissues in question. (Options may be used more than once or not at all.)
a.would produce arteriolar vasoconstriction
b.would produce arteriolar vasodilation
c.would not cause any change in arteriolar calibre
-norepinephrine on cerebral arterioles

Accepted Answer

The answer of Match the arteriolar effects, labelled a. through...

Question 10

The movements of fluid across the capillary wall depend on all of the following EXCEPT

Accepted Answer

A)  capillary blood pressure.
B)  interstitial-fluid hydrostatic pressure.
C)   plasma protein concentration.
D)   concentration of glucose in the capillary.E) A) and B)
F) A) and C)

Question 11

During exercise, a larger percentage of the cardiac output travels to the skin and skeletal muscles.

Accepted Answer

A) True 
 B)False

Question 12

Increased arteriolar radius _____ the total peripheral resistance.

Accepted Answer

The answer of Increased arteriolar radius _____ the total peripheral...

Question 13

Match the types of vessel, labelled a. through e., with the function(s) they perform. (Options may be used more than once or not at all.)
a.arteries
b.arterioles
c.capillaries
d.veins
e.lymphatics
-changes in the radius of this vessel type regulate the distribution of the cardiac output to various areas of the body

Accepted Answer

The answer of Match the types of vessel, labelled a....

Question 14

The primary means by which individual substances are exchanged between the blood and the surrounding tissues is by bulk flow.

Accepted Answer

A) True 
 B)False

Question 15

Increased sympathetic nerve activity _____ the stroke volume.

Accepted Answer

The answer of Increased sympathetic nerve activity _____ the stroke...

Question 16

What is endothelium-derived relaxing factor (EDRF) ?

Accepted Answer

A)  a local chemical mediator released from the endothelial cells that induces contraction of arteriolar smooth muscle in the vicinity
B)  adenosine
C)   nitric oxide
D)   carbon dioxide released from the endothelial cellsE) A) and D)
F) None of the above

Question 17

What is the primary method by which materials such as O2, CO2, and nutrients are exchanged between blood and the surrounding tissues?

Accepted Answer

A)  passive diffusion of substances across the capillary wall down their concentration gradients
B)  active transport of materials across the capillary wall
C)   osmotic pressure drawing water and solutes out of the capillary, and bringing these dissolved nutrients into contact with the tissue cells
D)   processes of ultrafiltration and reabsorptionE) B) and C)
F) All of the above

Question 18

Which of the following factors would produce the greatest increase in blood flow?

Accepted Answer

A)  doubling the radius of the vessel
B)  doubling the difference in the pressure gradient within the vessel
C)   doubling the viscosity of the blood
D)   doubling the length of the vesselE) B) and D)
F) C) and D)

Question 19

Increased parasympathetic nerve activity _____ the heart rate.

Accepted Answer

The answer of Increased parasympathetic nerve activity _____ the heart...

Question 20

Oedema refers to excess interstitial fluid.

Accepted Answer

A) True 
 B)False

Exam 8: Muscle Physiology

Which of these factors would decrease total peripheral resistance?

Correct Answer
verified

Baroreceptors are found mainly in the carotid sinus and the ____________________.

Correct Answer
verified

How is salt balance tied into blood pressure control?

Correct Answer
verified

What is endothelium-derived relaxing factor (EDRF) ?

Correct Answer
verified

Oedema refers to excess interstitial fluid.

Correct Answer
verified

If the diastolic pressure and systolic pressure were both increased by 18 mmHg, then the pulse pressure would be increased by 19 mmHg.

Correct Answer
verified

During exercise, a larger percentage of the cardiac output travels to the skin and skeletal muscles.

Correct Answer
verified

Correct Answer
verified

Increased sympathetic nerve activity _____ the stroke volume.

Correct Answer
verified

Increased arteriolar radius _____ the total peripheral resistance.

Correct Answer
verified

Blood flow is driven by ____________________.

Correct Answer
verified
mean arter...
View Answer

Which of the following factors would produce the greatest increase in blood flow?

Correct Answer
verified

Decreased stroke volume _____ cardiac output.

Correct Answer
verified

The primary means by which individual substances are exchanged between the blood and the surrounding tissues is by bulk flow.

Correct Answer
verified

Under which of these conditions will reabsorption occur?

Correct Answer
verified

Increased parasympathetic nerve activity _____ the heart rate.

Correct Answer
verified

How does the vasomotor centre respond to rising H⁺/CO₂?

Correct Answer
verified

What is the primary method by which materials such as O₂, CO₂, and nutrients are exchanged between blood and the surrounding tissues?

Correct Answer
verified

Correct Answer
verified

The movements of fluid across the capillary wall depend on all of the following EXCEPT

Correct Answer
verified

Exam 8: Muscle Physiology

Which of these factors would decrease total peripheral resistance?

Correct AnswerverifiedShow Answer

Baroreceptors are found mainly in the carotid sinus and the ____________________.

Correct AnswerverifiedShow Answer

How is salt balance tied into blood pressure control?

Correct AnswerverifiedShow Answer

What is endothelium-derived relaxing factor (EDRF) ?

Correct AnswerverifiedShow Answer

Oedema refers to excess interstitial fluid.

Correct AnswerverifiedShow Answer

If the diastolic pressure and systolic pressure were both increased by 18 mmHg, then the pulse pressure would be increased by 19 mmHg.

Correct AnswerverifiedShow Answer

During exercise, a larger percentage of the cardiac output travels to the skin and skeletal muscles.

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

Increased sympathetic nerve activity _____ the stroke volume.

Correct AnswerverifiedShow Answer

Increased arteriolar radius _____ the total peripheral resistance.

Correct AnswerverifiedShow Answer

Blood flow is driven by ____________________.

Correct Answerverifiedmean arter...View AnswerShow Answer

Which of the following factors would produce the greatest increase in blood flow?

Correct AnswerverifiedShow Answer

Decreased stroke volume _____ cardiac output.

Correct AnswerverifiedShow Answer

The primary means by which individual substances are exchanged between the blood and the surrounding tissues is by bulk flow.

Correct AnswerverifiedShow Answer

Under which of these conditions will reabsorption occur?

Correct AnswerverifiedShow Answer

Increased parasympathetic nerve activity _____ the heart rate.

Correct AnswerverifiedShow Answer

How does the vasomotor centre respond to rising H+/CO2?

Correct AnswerverifiedShow Answer

What is the primary method by which materials such as O2, CO2, and nutrients are exchanged between blood and the surrounding tissues?

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

The movements of fluid across the capillary wall depend on all of the following EXCEPT

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
mean arter...
View Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

How does the vasomotor centre respond to rising H⁺/CO₂?

Correct Answer
verified

What is the primary method by which materials such as O₂, CO₂, and nutrients are exchanged between blood and the surrounding tissues?

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified