Question 1

Sympathetic activity controls the degree of resistance in arterioles.

Accepted Answer

A) True 
 B)False  True

Question 2

Match the effects, labelled a. through d., with the events in question. (Options may be used more than once or not at all.)
-facultative Na⁺ reabsorption

Accepted Answer

A) increase BP 
B) decrease BP 
C) increase heart rate only 
D) have no effect on BP or heart rate 
A) increase BP 
B) decrease BP 
C) increase heart rate only 
D) have no effect on BP or heart rate A

Question 3

What is the major site of sympathetic blood flow control (resistance changes)

Accepted Answer

A) arteriole 
B) capillary 
C) metarteriole 
D) artery 
A) arteriole 
B) capillary 
C) metarteriole 
D) artery A

Question 4

There is normally a net gain of fluid in the capillary at the venular end.

Accepted Answer

A) True 
 B)False

Question 5

The main process by which exchange of solutes occurs between the blood and interstitial fluid at the capillary level is passive diffusion down concentration gradients.

Accepted Answer

A) True 
 B)False

Question 6

Vasoconstriction of blood vessels changes the flow of blood through them by decreasing/ increasing it.

Accepted Answer

The answer of Vasoconstriction of blood vessels changes the flow...

Question 7

Cardiac output = (EDV - ____________________) × heart rate.

Accepted Answer

The answer of Cardiac output = (EDV - ____________________) ×...

Question 8

Match the arteriolar effects, labelled a. through c., with the tissues in question. (Options may be used more than once or not at all.)
-parasympathetic discharge on skeletal muscle arterioles

Accepted Answer

A) would produce arteriolar vasoconstriction 
B) would produce arteriolar vasodilation 
C) would not cause any change in arteriolar calibre 
A) would produce arteriolar vasoconstriction 
B) would produce arteriolar vasodilation 
C) would not cause any change in arteriolar calibre

Question 9

Measurement of arterial pressure using a sphygmomanometer is possible because turbulent blood flow that occurs as arterial pressure overcomes a partially occluded artery, and can be heard by a stethoscope placed just over the artery.

Accepted Answer

A) True 
 B)False

Question 10

For a blood pressure reading of 136/78 mmHg, 78 refers to the diastolic pressure.

Accepted Answer

A) True 
 B)False

Question 11

Irreversible shock occurs when the cardiovascular system itself starts to deteriorate as a consequence of side effects from compensatory measures to severe hypotension.

Accepted Answer

A) True 
 B)False

Question 12

As the concentration of red blood cells increases in the blood, the viscosity of the blood increases.

Accepted Answer

A) True 
 B)False

Question 13

Where and why does blood flow increase during strenuous exercise

Accepted Answer

A) in the heart because of local control factors 
B) in the brain because of reflex control factors 
C) in the skeletal muscles because of local control factors 
D) in the lungs because of local control factors 
A) in the heart because of local control factors 
B) in the brain because of reflex control factors 
C) in the skeletal muscles because of local control factors 
D) in the lungs because of local control factors

Question 14

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 cells 
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 cells

Question 15

Match the effects, labelled a. through e., that the changes in question would have on bulk flow. (Options may be used more than once or not at all.)
-escape of plasma proteins into the interstitial fluid due to capillary damage

Accepted Answer

A) The change would increase ultrafiltration and decrease reabsorption. 
B) The change would decrease ultrafiltration and increase reabsorption. 
C) The change would increase both ultrafiltration and reabsorption. 
D) The change would decrease both ultrafiltration and reabsorption. 
E) The change would not alter ultrafiltration and reabsorption. 
A) The change would increase ultrafiltration and decrease reabsorption. 
B) The change would decrease ultrafiltration and increase reabsorption. 
C) The change would increase both ultrafiltration and reabsorption. 
D) The change would decrease both ultrafiltration and reabsorption. 
E) The change would not alter ultrafiltration and reabsorption.

Question 16

If driving pressure is constant, flow will double when the radius increases by twofold.

Accepted Answer

A) True 
 B)False

Question 17

Which of these local chemical factors will NOT cause vasodilation of arterioles

Accepted Answer

A) decreased K⁺ 
B) increased CO₂ 
C) increased acid 
D) decreased O₂ 
A) decreased K⁺ 
B) increased CO₂ 
C) increased acid 
D) decreased O₂

Question 18

Through which of these vessels is the velocity of blood flow the slowest

Accepted Answer

A) aorta 
B) arterioles 
C) capillaries 
D) veins 
A) aorta 
B) arterioles 
C) capillaries 
D) veins

Question 19

If the pulse pressure is 44 mmHg, and the diastolic pressure is 68 mmHg, what is the systolic pressure

Accepted Answer

A) 22 mmHg 
B) 24 mmHg 
C) 66 mmHg 
D) 112 mmHg 
A) 22 mmHg 
B) 24 mmHg 
C) 66 mmHg 
D) 112 mmHg

Question 20

Total peripheral resistance is dependent primarily on ____________________.

Accepted Answer

the degree

Sympathetic activity controls the degree of resistance in arterioles.

Match the effects, labelled a. through d., with the events in question. (Options may be used more than once or not at all.) -facultative Na⁺ reabsorption

What is the major site of sympathetic blood flow control (resistance changes)

There is normally a net gain of fluid in the capillary at the venular end.

The main process by which exchange of solutes occurs between the blood and interstitial fluid at the capillary level is passive diffusion down concentration gradients.

Vasoconstriction of blood vessels changes the flow of blood through them by decreasing/ increasing it.

Cardiac output = (EDV - ____________________) × heart rate.

Match the arteriolar effects, labelled a. through c., with the tissues in question. (Options may be used more than once or not at all.) -parasympathetic discharge on skeletal muscle arterioles

Measurement of arterial pressure using a sphygmomanometer is possible because turbulent blood flow that occurs as arterial pressure overcomes a partially occluded artery, and can be heard by a stethoscope placed just over the artery.

For a blood pressure reading of 136/78 mmHg, 78 refers to the diastolic pressure.

Irreversible shock occurs when the cardiovascular system itself starts to deteriorate as a consequence of side effects from compensatory measures to severe hypotension.

As the concentration of red blood cells increases in the blood, the viscosity of the blood increases.

Where and why does blood flow increase during strenuous exercise

What is endothelium-derived relaxing factor (EDRF)

Match the effects, labelled a. through e., that the changes in question would have on bulk flow. (Options may be used more than once or not at all.) -escape of plasma proteins into the interstitial fluid due to capillary damage

If driving pressure is constant, flow will double when the radius increases by twofold.

Which of these local chemical factors will NOT cause vasodilation of arterioles

Through which of these vessels is the velocity of blood flow the slowest

If the pulse pressure is 44 mmHg, and the diastolic pressure is 68 mmHg, what is the systolic pressure

Total peripheral resistance is dependent primarily on ____________________.

The Foundation of Physiology

Cell Physiology

The Central Nervous System

The Peripheral Nervous System: Sensory, Autonomic, Somatic

Principles of Endocrinology: The Central Endocrine Glands

The Endocrine Glands

Muscle Physiology

Cardiac Physiology

The Blood

Body Defences

The Respiratory System

The Urinary System

Fluid and Acidbase Balance

The Digestive System

Energy Balance and Temperature Regulation

The Reproductive System

Filters

Exam 9: Vascular Physiology

Sympathetic activity controls the degree of resistance in arterioles.

Match the effects, labelled a. through d., with the events in question. (Options may be used more than once or not at all.) -facultative Na⁺ reabsorption

What is the major site of sympathetic blood flow control (resistance changes)

There is normally a net gain of fluid in the capillary at the venular end.

The main process by which exchange of solutes occurs between the blood and interstitial fluid at the capillary level is passive diffusion down concentration gradients.

Vasoconstriction of blood vessels changes the flow of blood through them by decreasing/ increasing it.

Cardiac output = (EDV - ____________________) × heart rate.

Match the arteriolar effects, labelled a. through c., with the tissues in question. (Options may be used more than once or not at all.) -parasympathetic discharge on skeletal muscle arterioles

Measurement of arterial pressure using a sphygmomanometer is possible because turbulent blood flow that occurs as arterial pressure overcomes a partially occluded artery, and can be heard by a stethoscope placed just over the artery.

For a blood pressure reading of 136/78 mmHg, 78 refers to the diastolic pressure.

Irreversible shock occurs when the cardiovascular system itself starts to deteriorate as a consequence of side effects from compensatory measures to severe hypotension.

As the concentration of red blood cells increases in the blood, the viscosity of the blood increases.

Where and why does blood flow increase during strenuous exercise

What is endothelium-derived relaxing factor (EDRF)

Match the effects, labelled a. through e., that the changes in question would have on bulk flow. (Options may be used more than once or not at all.) -escape of plasma proteins into the interstitial fluid due to capillary damage

If driving pressure is constant, flow will double when the radius increases by twofold.

Which of these local chemical factors will NOT cause vasodilation of arterioles

Through which of these vessels is the velocity of blood flow the slowest

If the pulse pressure is 44 mmHg, and the diastolic pressure is 68 mmHg, what is the systolic pressure

Total peripheral resistance is dependent primarily on ____________________.

The Foundation of Physiology

Cell Physiology

The Central Nervous System

The Peripheral Nervous System: Sensory, Autonomic, Somatic

Principles of Endocrinology: The Central Endocrine Glands

The Endocrine Glands

Muscle Physiology

Cardiac Physiology

The Blood

Body Defences

The Respiratory System

The Urinary System

Fluid and Acidbase Balance

The Digestive System

Energy Balance and Temperature Regulation

The Reproductive System

Filters