Question 1

Increased venous radius _____ the blood flow through the vein.

Accepted Answer

Increased venous radius increases the bl

Question 2

Which statement describes mean arterial pressure

Accepted Answer

A) diastolic pressure + (systolic pressure/3) 
B) systolic pressure + (pulse pressure/3) 
C) diastolic pressure + (pulse pressure/3) 
D) pulse pressure - (diastolic pressure/3) 
A) diastolic pressure + (systolic pressure/3) 
B) systolic pressure + (pulse pressure/3) 
C) diastolic pressure + (pulse pressure/3) 
D) pulse pressure - (diastolic pressure/3)

Question 3

The baroreceptors are usually no longer functional in the presence of hypertension.

Accepted Answer

A) True 
 B)False

Question 4

Match the arteriolar effects, labelled a. through c., with the tissues in question. (Options may be used more than once or not at all.)
-occlusion of an artery supplying a particular tissue

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 5

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.)
-changes in the radius of this vessel type regulate the distribution of the cardiac output to various areas of the body

Accepted Answer

A) arteries 
B) arterioles 
C) capillaries 
D) veins 
E) lymphatics 
A) arteries 
B) arterioles 
C) capillaries 
D) veins 
E) lymphatics

Question 6

In which of these vessels is the largest total cross-sectional area found

Accepted Answer

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

Question 7

Which of these statements does NOT apply to nitric oxide

Accepted Answer

A) It increases total peripheral resistance by its action on arteriolar smooth muscle. 
B) It serves as endothelium-derived relaxing factor. 
C) It is the direct mediator of penile erection. 
D) It is released as "chemical warfare" by macrophages of the immune system. 
A) It increases total peripheral resistance by its action on arteriolar smooth muscle. 
B) It serves as endothelium-derived relaxing factor. 
C) It is the direct mediator of penile erection. 
D) It is released as "chemical warfare" by macrophages of the immune system.

Question 8

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.)
-expanded plasma volume due to excessive fluid intake

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 9

Which of these alterations could lead to oedema

Accepted Answer

A) a fall in capillary blood pressure 
B) a fall in the concentration of plasma proteins 
C) a dilation of lymph vessels 
D) an increase in plasma osmolarity 
A) a fall in capillary blood pressure 
B) a fall in the concentration of plasma proteins 
C) a dilation of lymph vessels 
D) an increase in plasma osmolarity

Question 10

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.)
-serve as low-resistance passageways from the heart to the tissues

Accepted Answer

A) arteries 
B) arterioles 
C) capillaries 
D) veins 
E) lymphatics 
A) arteries 
B) arterioles 
C) capillaries 
D) veins 
E) lymphatics

Question 11

The pulse pressure is the maximum pressure exerted in the arteries.

Accepted Answer

A) True 
 B)False

Question 12

The capillary vessel walls are more permeable than the lymphatic vessel walls.

Accepted Answer

A) True 
 B)False

Question 13

What effects do the kidneys have on blood pressure maintenance

Accepted Answer

The kidneys play a crucial role in the m

Question 14

Which organ receives the most blood flow while at rest

Accepted Answer

A) heart 
B) kidney 
C) brain 
D) muscle 
A) heart 
B) kidney 
C) brain 
D) muscle

Question 15

Decreased venous return _____ the stroke volume.

Accepted Answer

Decreased venous return reduces the stro

Question 16

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

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

Question 17

The greatest pressure drop in the vascular system occurs within the capillaries due to fluid leaving the capillaries by the process of ultrafiltration.

Accepted Answer

A) True 
 B)False

Question 18

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.)
-site of exchange of nutrients and waste products between the blood and surrounding tissues

Accepted Answer

A) arteries 
B) arterioles 
C) capillaries 
D) veins 
E) lymphatics 
A) arteries 
B) arterioles 
C) capillaries 
D) veins 
E) lymphatics

Question 19

Which of these factors does NOT cause arteriolar vasodilation

Accepted Answer

A) decreased sympathetic stimulation 
B) local decrease in O₂ 
C) histamine release 
D) myogenic response to passive stretch of the vessel 
A) decreased sympathetic stimulation 
B) local decrease in O₂ 
C) histamine release 
D) myogenic response to passive stretch of the vessel

Question 20

Match the terms, labelled a. through d., with the correct characteristics.
-increase in blood flow to a tissue that occurs after removal of an occlusion of its blood supply

Accepted Answer

A) reactive hyperaemia 
B) active hyperaemia 
C) pressure autoregulation 
D) extrinsic control 
A) reactive hyperaemia 
B) active hyperaemia 
C) pressure autoregulation 
D) extrinsic control

Increased venous radius _____ the blood flow through the vein.

Which statement describes mean arterial pressure

The baroreceptors are usually no longer functional in the presence of hypertension.

Match the arteriolar effects, labelled a. through c., with the tissues in question. (Options may be used more than once or not at all.) -occlusion of an artery supplying a particular tissue

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.) -changes in the radius of this vessel type regulate the distribution of the cardiac output to various areas of the body

In which of these vessels is the largest total cross-sectional area found

Which of these statements does NOT apply to nitric oxide

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.) -expanded plasma volume due to excessive fluid intake

Which of these alterations could lead to oedema

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.) -serve as low-resistance passageways from the heart to the tissues

The pulse pressure is the maximum pressure exerted in the arteries.

The capillary vessel walls are more permeable than the lymphatic vessel walls.

What effects do the kidneys have on blood pressure maintenance

Which organ receives the most blood flow while at rest

Decreased venous return _____ the stroke volume.

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

The greatest pressure drop in the vascular system occurs within the capillaries due to fluid leaving the capillaries by the process of ultrafiltration.

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.) -site of exchange of nutrients and waste products between the blood and surrounding tissues

Which of these factors does NOT cause arteriolar vasodilation

Match the terms, labelled a. through d., with the correct characteristics. -increase in blood flow to a tissue that occurs after removal of an occlusion of its blood supply

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

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Exam 9: Vascular Physiology

Increased venous radius _____ the blood flow through the vein.

Which statement describes mean arterial pressure

The baroreceptors are usually no longer functional in the presence of hypertension.

Match the arteriolar effects, labelled a. through c., with the tissues in question. (Options may be used more than once or not at all.) -occlusion of an artery supplying a particular tissue

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.) -changes in the radius of this vessel type regulate the distribution of the cardiac output to various areas of the body

In which of these vessels is the largest total cross-sectional area found

Which of these statements does NOT apply to nitric oxide

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.) -expanded plasma volume due to excessive fluid intake

Which of these alterations could lead to oedema

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.) -serve as low-resistance passageways from the heart to the tissues

The pulse pressure is the maximum pressure exerted in the arteries.

The capillary vessel walls are more permeable than the lymphatic vessel walls.

What effects do the kidneys have on blood pressure maintenance

Which organ receives the most blood flow while at rest

Decreased venous return _____ the stroke volume.

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

The greatest pressure drop in the vascular system occurs within the capillaries due to fluid leaving the capillaries by the process of ultrafiltration.

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.) -site of exchange of nutrients and waste products between the blood and surrounding tissues

Which of these factors does NOT cause arteriolar vasodilation

Match the terms, labelled a. through d., with the correct characteristics. -increase in blood flow to a tissue that occurs after removal of an occlusion of its blood supply

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