Question 1

Which of the following increases systemic vascular resistance,stroke volume,and heart rate?

Accepted Answer

A) Stimulation of the vagus nerve 
B) Stimulation of the parasympathetic nervous system 
C) Administration of a sympatholytic drug 
D) Stimulation of the sympathetic nervous system 
A) Stimulation of the vagus nerve 
B) Stimulation of the parasympathetic nervous system 
C) Administration of a sympatholytic drug 
D) Stimulation of the sympathetic nervous system D

Question 2

If the lymphatic vessels are blocked or surgically removed,

Accepted Answer

A) excess fluid is filtered out of the capillary. 
B) plasma oncotic pressure decreases,thereby causing fluid to leak out of the capillary. 
C) fluid and protein accumulate in the interstitium,thereby causing edema. 
D) excess fluid moves into the capillary,thereby "drying out" the interstitium. 
A) excess fluid is filtered out of the capillary. 
B) plasma oncotic pressure decreases,thereby causing fluid to leak out of the capillary. 
C) fluid and protein accumulate in the interstitium,thereby causing edema. 
D) excess fluid moves into the capillary,thereby "drying out" the interstitium. C

Question 3

What do the baroreceptors sense?

Accepted Answer

A) Blood volume 
B) Hematocrit 
C) Blood pressure 
D) Rate of capillary filtration 
A) Blood volume 
B) Hematocrit 
C) Blood pressure 
D) Rate of capillary filtration C

Question 4

The disappearance of Korotkoff sounds

Accepted Answer

A) indicates that blood flow has been restored in the previously occluded blood vessel. 
B) is recorded as the diastolic reading. 
C) is indicative of a life-threatening hypotension. 
D) Both A and B are true. 
A) indicates that blood flow has been restored in the previously occluded blood vessel. 
B) is recorded as the diastolic reading. 
C) is indicative of a life-threatening hypotension. 
D) Both A and B are true.

Question 5

Blood flow is slowest in the

Accepted Answer

A) aorta. 
B) capillaries. 
C) venules. 
D) arterioles. 
A) aorta. 
B) capillaries. 
C) venules. 
D) arterioles.

Question 6

What is the pulse pressure when a person's blood pressure is 120/80 mm Hg?

Accepted Answer

A) 120 mm Hg 
B) 80 mm Hg 
C) 40 mm Hg 
D) Can't determine the pulse pressure from this information 
A) 120 mm Hg 
B) 80 mm Hg 
C) 40 mm Hg 
D) Can't determine the pulse pressure from this information

Question 7

Why does blood flow from the arterial side of the circulation to the venous side of the circulation?

Accepted Answer

A) Capillary pressure is higher than the pressure within the large arteries and veins. 
B) The oncotic pressure in the venous side of the circulation is greater than the oncotic pressure on the venous side of the circulation. 
C) The pressure on the arterial side of the circulation is higher than the pressure on the venous side of the circulation. 
D) Blood volume is greater on the arterial side of the circulation than on the venous side of the circulation. 
A) Capillary pressure is higher than the pressure within the large arteries and veins. 
B) The oncotic pressure in the venous side of the circulation is greater than the oncotic pressure on the venous side of the circulation. 
C) The pressure on the arterial side of the circulation is higher than the pressure on the venous side of the circulation. 
D) Blood volume is greater on the arterial side of the circulation than on the venous side of the circulation.

Question 8

Capillary pressure is a reflection of

Accepted Answer

A) plasma proteins. 
B) albumin. 
C) lymph. 
D) blood pressure. 
A) plasma proteins. 
B) albumin. 
C) lymph. 
D) blood pressure.

Question 9

Which of the following is a consequence of sympathetic nerve stimulation?

Accepted Answer

A) Increased myocardial force of contraction 
B) Peripheral vasoconstriction 
C) Increased systemic vascular resistance 
D) All of the above 
A) Increased myocardial force of contraction 
B) Peripheral vasoconstriction 
C) Increased systemic vascular resistance 
D) All of the above

Question 10

A tight collar might trigger the baroreceptor reflex because the

Accepted Answer

A) carotid baroreceptors sense a change in the osmolarity of the blood flowing through the carotid arteries. 
B) carotid baroreceptors interpret the elevated carotid pressure as an elevation of blood pressure. 
C) tight collar occludes blood flow to the brain,causing cerebral artery spasms. 
D) tight collar impairs drainage of cerebral venous blood,causing cerebral edema. 
A) carotid baroreceptors sense a change in the osmolarity of the blood flowing through the carotid arteries. 
B) carotid baroreceptors interpret the elevated carotid pressure as an elevation of blood pressure. 
C) tight collar occludes blood flow to the brain,causing cerebral artery spasms. 
D) tight collar impairs drainage of cerebral venous blood,causing cerebral edema.

Question 11

Loss of speech,paralysis,and possible death can be caused by

Accepted Answer

A) hypertension. 
B) rupture of a blood vessel in the brain. 
C) decreased oncotic pressure. 
D) edema. 
A) hypertension. 
B) rupture of a blood vessel in the brain. 
C) decreased oncotic pressure. 
D) edema.

Question 12

Both epinephrine and norepinephrine are

Accepted Answer

A) steroids. 
B) secreted by the adrenal medulla. 
C) vasodilators. 
D) blood pressure-lowering hormones. 
A) steroids. 
B) secreted by the adrenal medulla. 
C) vasodilators. 
D) blood pressure-lowering hormones.

Question 13

Which artery is most often used to measure blood pressure?

Accepted Answer

A) Carotid 
B) Brachial 
C) Femoral 
D) Circle of Willis 
A) Carotid 
B) Brachial 
C) Femoral 
D) Circle of Willis

Question 14

What effects do ANP and BNP have?

Accepted Answer

A) Stimulate vasodilation and decrease blood volume 
B) Stimulate vasoconstriction and increase blood volume 
C) Stimulate vasoconstriction and decrease blood volume 
D) Stimulate vasodilation and increase blood volume 
A) Stimulate vasodilation and decrease blood volume 
B) Stimulate vasoconstriction and increase blood volume 
C) Stimulate vasoconstriction and decrease blood volume 
D) Stimulate vasodilation and increase blood volume

Question 15

A sphygmomanometer measures

Accepted Answer

A) blood flow. 
B) hematocrit. 
C) blood pressure. 
D) oxygen saturation. 
A) blood flow. 
B) hematocrit. 
C) blood pressure. 
D) oxygen saturation.

Question 16

An IV infusion of mannitol (a sugar solution) is used to decrease intracranial pressure in a head-injured patient because the mannitol

Accepted Answer

A) provides calories for the healing of the injured brain. 
B) is absorbed by the injured brain cells and pulls water into the brain cells from the tissue fluid. 
C) pulls water out of the interstitium of the brain into the capillaries,thereby relieving edema. 
D) "clumps" the plasma proteins together,thereby severely diminishing plasma oncotic pressure. 
A) provides calories for the healing of the injured brain. 
B) is absorbed by the injured brain cells and pulls water into the brain cells from the tissue fluid. 
C) pulls water out of the interstitium of the brain into the capillaries,thereby relieving edema. 
D) "clumps" the plasma proteins together,thereby severely diminishing plasma oncotic pressure.

Question 17

Which of the following is true? (CO is cardiac output,BP is blood pressure,SV is stroke volume,HR is heart rate,SVR is systemic vascular resistance. )

Accepted Answer

A) CO = HR× SV× pulse pressure 
B) BP = CO× SV× SVR 
C) BP = SV× pulse pressure 
D) BP = SV× HR× SVR 
A) CO = HR× SV× pulse pressure 
B) BP = CO× SV× SVR 
C) BP = SV× pulse pressure 
D) BP = SV× HR× SVR

Question 18

Which of the following is not true of an adult male who has a blood pressure of 116/72 mm Hg?

Accepted Answer

A) It is a normotensive reading. 
B) The 116 mm Hg is the systolic reading. 
C) The 72 mm Hg is the diastolic reading. 
D) The pulse pressure is 100 mm Hg. 
A) It is a normotensive reading. 
B) The 116 mm Hg is the systolic reading. 
C) The 72 mm Hg is the diastolic reading. 
D) The pulse pressure is 100 mm Hg.

Question 19

Which of the following structures has the greatest effect on systemic vascular resistance?

Accepted Answer

A) Veins 
B) Arterioles 
C) Heart 
D) Capillaries 
A) Veins 
B) Arterioles 
C) Heart 
D) Capillaries

Question 20

While "taking" a blood pressure,you record the first Korotkoff sounds as the

Accepted Answer

A) pulse pressure. 
B) mean arterial blood pressure. 
C) diastolic reading. 
D) systolic reading. 
A) pulse pressure. 
B) mean arterial blood pressure. 
C) diastolic reading. 
D) systolic reading.

Exam 19: Functions of the Blood Vessels

Which of the following increases systemic vascular resistance,stroke volume,and heart rate?

If the lymphatic vessels are blocked or surgically removed,

What do the baroreceptors sense?

The disappearance of Korotkoff sounds

Blood flow is slowest in the

What is the pulse pressure when a person's blood pressure is 120/80 mm Hg?

Why does blood flow from the arterial side of the circulation to the venous side of the circulation?

Capillary pressure is a reflection of

Which of the following is a consequence of sympathetic nerve stimulation?

A tight collar might trigger the baroreceptor reflex because the

Loss of speech,paralysis,and possible death can be caused by

Both epinephrine and norepinephrine are

Which artery is most often used to measure blood pressure?

What effects do ANP and BNP have?

A sphygmomanometer measures

An IV infusion of mannitol (a sugar solution) is used to decrease intracranial pressure in a head-injured patient because the mannitol

Which of the following is true? (CO is cardiac output,BP is blood pressure,SV is stroke volume,HR is heart rate,SVR is systemic vascular resistance. )

Which of the following is not true of an adult male who has a blood pressure of 116/72 mm Hg?

Which of the following structures has the greatest effect on systemic vascular resistance?

While "taking" a blood pressure,you record the first Korotkoff sounds as the

Introduction to the Human Body

Basic Chemistry

Cells

Cell Metabolism

Microbiology Basics

Tissues and Membranes

Integumentary System and Body Temperature

Skeletal System

Muscular System

Nervous System: Nervous Tissue and Brain

Nervous System: Spinal Cord and Peripheral Nerves

Autonomic Nervous System

Sensory System

Endocrine System

Blood

Anatomy of the Heart

Function of the Heart

Anatomy of the Blood Vessels and Special Circulations

Lymphatic System

Immune System

Respiratory System

Digestive System

Urinary System

Water, Electrolyte, and Acidbase Balance

Reproductive Systems

Human Development and Heredity

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