Question 1

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 B

Question 2

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. D

Question 3

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. 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)  More than one of the above is 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)  More than one of the above is true.

Question 5

Which of the following elevates blood pressure?

Accepted Answer

A)  Diuretics 
B)  Vasodilators 
C)  Vasopressors 
D)  Antihypertensive drugs 
A)  Diuretics 
B)  Vasodilators 
C)  Vasopressors 
D)  Antihypertensive drugs

Question 6

If a child with nephrotic syndrome loses large amounts of albumin in the urine (albuminuria),

Accepted Answer

A)  plasma oncotic pressure decreases and edema develops. 
B)  capillary hydrostatic pressure increases, causing edema. 
C)  plasma oncotic pressure increases, thereby "pulling" fluid into the capillary, causing poor skin turgor. 
D)  lymph flow decreases. 
A)  plasma oncotic pressure decreases and edema develops. 
B)  capillary hydrostatic pressure increases, causing edema. 
C)  plasma oncotic pressure increases, thereby "pulling" fluid into the capillary, causing poor skin turgor. 
D)  lymph flow decreases.

Question 7

The characteristic of the arteriole that allows it to function as a resistance vessel is its

Accepted Answer

A)  thin membrane. 
B)  porous membrane. 
C)  valves. 
D)  smooth muscle. 
A)  thin membrane. 
B)  porous membrane. 
C)  valves. 
D)  smooth muscle.

Question 8

Which of the following best explains why the skeletal muscle pump improves venous return of blood to the heart?

Accepted Answer

A)  Paresthesia 
B)  Ischemia 
C)  External compression 
D)  Necrosis 
A)  Paresthesia 
B)  Ischemia 
C)  External compression 
D)  Necrosis

Question 9

Digital (finger press)pressure is exerted over the carotid sinus.You expect

Accepted Answer

A)  the sympathetics to fire, thereby increasing blood pressure. 
B)  that the medulla oblongata will interpret the signal as high blood pressure and therefore fire the vagus nerve. 
C)  no effect, because the baroreceptors are "crushed." 
D)  reflex tachycardia. 
A)  the sympathetics to fire, thereby increasing blood pressure. 
B)  that the medulla oblongata will interpret the signal as high blood pressure and therefore fire the vagus nerve. 
C)  no effect, because the baroreceptors are "crushed." 
D)  reflex tachycardia.

Question 10

Which of the following is the most likely outcome of persistent and prolonged ischemia of the lower extremity?

Accepted Answer

A)  Necrosis 
B)  Red, flushed appearance 
C)  Increased surface temperature of the lower extremity 
D)  Palpation of the dorsalis pedis pulse 
A)  Necrosis 
B)  Red, flushed appearance 
C)  Increased surface temperature of the lower extremity 
D)  Palpation of the dorsalis pedis pulse

Question 11

Which part of the brain participates in the baroreceptor reflex?

Accepted Answer

A)  Cerebrum 
B)  Corpus callosum 
C)  Cerebellum 
D)  Medulla oblongata 
A)  Cerebrum 
B)  Corpus callosum 
C)  Cerebellum 
D)  Medulla oblongata

Question 12

Which of the following refers to an insufficient blood supply to an organ or body part?

Accepted Answer

A)  Pallor 
B)  Ischemia 
C)  Paresthesia 
D)  Paresis 
A)  Pallor 
B)  Ischemia 
C)  Paresthesia 
D)  Paresis

Question 13

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 14

What do the baroreceptors regulate?

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

Question 15

What is the mean arterial pressure of a blood pressure of 140/80?

Accepted Answer

A)  40 mm Hg 
B)  100 mm Hg 
C)  60 mm Hg 
D)  Can't determine from this data 
A)  40 mm Hg 
B)  100 mm Hg 
C)  60 mm Hg 
D)  Can't determine from this data

Question 16

Which condition is characterized by poor skin turgor?

Accepted Answer

A)  Expanded blood volume 
B)  Pulmonary edema 
C)  Varicose veins 
D)  Dehydration 
A)  Expanded blood volume 
B)  Pulmonary edema 
C)  Varicose veins 
D)  Dehydration

Question 17

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 18

Which of the following is most related to the systolic reading,diastolic reading,and Korotkoff sounds?

Accepted Answer

A)  Cardiac output 
B)  Blood pressure 
C)  The electrical activity of the heart 
D)  Coronary blood flow 
A)  Cardiac output 
B)  Blood pressure 
C)  The electrical activity of the heart 
D)  Coronary blood flow

Question 19

An IV infusion of mannitol (a hypertonic 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 20

Blood flow is slowest in the

Accepted Answer

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

Exam 19: Functions of the Blood Vessels

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

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

The disappearance of Korotkoff sounds

Which of the following elevates blood pressure?

If a child with nephrotic syndrome loses large amounts of albumin in the urine (albuminuria),

The characteristic of the arteriole that allows it to function as a resistance vessel is its

Which of the following best explains why the skeletal muscle pump improves venous return of blood to the heart?

Digital (finger press)pressure is exerted over the carotid sinus.You expect

Which of the following is the most likely outcome of persistent and prolonged ischemia of the lower extremity?

Which part of the brain participates in the baroreceptor reflex?

Which of the following refers to an insufficient blood supply to an organ or body part?

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

What do the baroreceptors regulate?

What is the mean arterial pressure of a blood pressure of 140/80?

Which condition is characterized by poor skin turgor?

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 is most related to the systolic reading,diastolic reading,and Korotkoff sounds?

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

Blood flow is slowest in 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

Lymphatic System

Immune System

Respiratory System

Digestive System

Urinary System

Water, Electrolyte, and Acid-Base Balance

Reproductive Systems

Human Development and Heredity

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