Question 1

The difference between lateral and end pressure is

Accepted Answer

A)  Due to the equivalent pressure of the kinetic energy of the blood 
B)  Zero in all parts of the vasculature 
C)  Due to the hydrostatic pressure in the vasculature 
D)  Due to the PV work done by the heart 
E)  Maximum at zero flow 
A)  Due to the equivalent pressure of the kinetic energy of the blood 
B)  Zero in all parts of the vasculature 
C)  Due to the hydrostatic pressure in the vasculature 
D)  Due to the PV work done by the heart 
E)  Maximum at zero flow A

Question 2

If the flow through an artery obeys Poiseuille’s law, decreasing the radius of an artery by a factor of 2 should

Accepted Answer

A)  Increase the resistance by a factor of 2 
B)  Increase the resistance by a factor of 4 
C)  Increase the resistance by a factor of 8 
D)  Increase the resistance by a factor of 16 
E)  Decrease the resistance by a factor of 8 
A)  Increase the resistance by a factor of 2 
B)  Increase the resistance by a factor of 4 
C)  Increase the resistance by a factor of 8 
D)  Increase the resistance by a factor of 16 
E)  Decrease the resistance by a factor of 8 D

Question 3

The ratio of venous to arterial compliance is about

Accepted Answer

A)  0.05 
B)  0.1 
C)  1 
D)  10 
E)  20 
A)  0.05 
B)  0.1 
C)  1 
D)  10 
E)  20 E

Question 4

The velocity of the pressure pulse in a normal adult is about

Accepted Answer

A)  0.05 m s-1 
B)  0.5 m s-1 
C)  5 m s-1 
D)  50 ms-1 
E)  500 m s-1 
A)  0.05 m s-1 
B)  0.5 m s-1 
C)  5 m s-1 
D)  50 ms-1 
E)  500 m s-1

Question 5

W hich of the following is NOT one of the functions of the vasculature?

Accepted Answer

A)  Volume reservoir 
B)  Exchange of materials in the tissues 
C)  Distribute flow to the organs 
D)  Contain the blood 
E)  Fight off viral and bacterial infections 
A)  Volume reservoir 
B)  Exchange of materials in the tissues 
C)  Distribute flow to the organs 
D)  Contain the blood 
E)  Fight off viral and bacterial infections

Question 6

Blood pressure is measured clinical by a device called

Accepted Answer

A)  Sphygmomanom eter 
B)  Mercury tonometer 
C)  Air puff tonometer 
D)  Doppler sonometer 
E)  Mercury barometer 
A)  Sphygmomanom eter 
B)  Mercury tonometer 
C)  Air puff tonometer 
D)  Doppler sonometer 
E)  Mercury barometer

Question 7

Com pliance is DEFINED as

Accepted Answer

A)  C = $\Delta$ V / $\Delta$ P 
B)  C = Q V / R 
C)  C = $\Delta$P / R 
D)  C = 8 $\eta$ L / $\pi$ r4 
E)  C = $\Delta$V/ Qv 
A)  C = $\Delta$ V / $\Delta$ P 
B)  C = Q V / R 
C)  C = $\Delta$P / R 
D)  C = 8 $\eta$ L / $\pi$ r4 
E)  C = $\Delta$V/ Qv

Question 8

The dicrotic notch is caused by

Accepted Answer

A)  The closure of the pulmonary valve 
B)  Contraction of the left ventricle 
C)  Closure of the aortic valve 
D)  Reflection of the pressure wave off the peripheral arteries 
E)  Closure of the triscupid valve 
A)  The closure of the pulmonary valve 
B)  Contraction of the left ventricle 
C)  Closure of the aortic valve 
D)  Reflection of the pressure wave off the peripheral arteries 
E)  Closure of the triscupid valve

Question 9

The compliance of the aorta and major arteries

Accepted Answer

A)  Is DEFINED as C = $\Delta$P / ( $\pi$r4/ 8$\eta$l) 
B)  Along with the stroke volume, determines the pulse pressure 
C)  Determines the afterload 
D)  Determines the preload 
E)  Causes the aortic notch 
A)  Is DEFINED as C = $\Delta$P / ( $\pi$r4/ 8$\eta$l) 
B)  Along with the stroke volume, determines the pulse pressure 
C)  Determines the afterload 
D)  Determines the preload 
E)  Causes the aortic notch

Question 10

The difference in time between ejection of blood and the first Korotkoff sound in the brachial artery at the antecubital fossa is about (choose the best answer - obviously none are right on the money)

Accepted Answer

A)  1 ms 
B)  0.01 s 
C)  0.1 s 
D)  1 s 
E)  5 s 
A)  1 ms 
B)  0.01 s 
C)  0.1 s 
D)  1 s 
E)  5 s

Question 11

Your Professor’s stroke volum e at rest is 90 mL (because he has a big heart - believe it or not). His systolic pressure is 135 m m Hg and diastolic is 90 mm Hg. W hen reading your exam s, his systolic pressure climbs to 150 mm Hg while diastolic pressure is unchanged. Assume no change
in compliance of his arteries. Your Professor’s stroke volume while reading your exams

Accepted Answer

A)  Increases to about 150 mL 
B)  Increases to about 120 mL 
C)  Decreases to about 60 mL 
D)  Is unchanged 
E)  Can’t be determined because sympathetic stimulation constricts the veins 
A)  Increases to about 150 mL 
B)  Increases to about 120 mL 
C)  Decreases to about 60 mL 
D)  Is unchanged 
E)  Can’t be determined because sympathetic stimulation constricts the veins

Question 12

Flow velocity in the vasculature is greatest in the

Accepted Answer

A)  Large arteries because pressure is highest 
B)  Smallest vessels because total cross-sectional area is lowest 
C)  Veins because compliance is least 
D)  Large arteries because total cross-sectional area is least 
E)  Smallest vessels because the pressure gradient is greatestis greatest 
A)  Large arteries because pressure is highest 
B)  Smallest vessels because total cross-sectional area is lowest 
C)  Veins because compliance is least 
D)  Large arteries because total cross-sectional area is least 
E)  Smallest vessels because the pressure gradient is greatestis greatest

Question 13

The muffling or disappearance of the Korotkoff sound occurs at a pressure corresponding to the

Accepted Answer

A)  Average arterial pressure 
B)  Diastolic pressure 
C)  Systolic pressure 
D)  Dicrotic notch 
E)  Pulse pressure 
A)  Average arterial pressure 
B)  Diastolic pressure 
C)  Systolic pressure 
D)  Dicrotic notch 
E)  Pulse pressure

Question 14

Which of the following is NOT one of the assumptions for Poiseuille flow?

Accepted Answer

A)  Flow is turbulent 
B)  The tube is rigid 
C)  The tube is a right circular cylinder 
D)  The fluid is Newtonian 
E)  There is no "slippage" at the wall 
A)  Flow is turbulent 
B)  The tube is rigid 
C)  The tube is a right circular cylinder 
D)  The fluid is Newtonian 
E)  There is no "slippage" at the wall

Question 15

The largest pressure drop in the circulation occurs in the

Accepted Answer

A)  Large arteries 
B)  Arterioles 
C)  Capillaries 
D)  Venules 
E)  Lareg veins 
A)  Large arteries 
B)  Arterioles 
C)  Capillaries 
D)  Venules 
E)  Lareg veins

Question 16

During a routine blood pressure measurem ent, the external pressure imposed on the radial artery is just a little lower than the systolic pressure. Blood squirts through the artery and produces a noise called the

Accepted Answer

A)  First heart sound 
B)  Second heart sound 
C)  First Korotkoff sound 
D)  Bruit 
E)  Second Korotkoff sound 
A)  First heart sound 
B)  Second heart sound 
C)  First Korotkoff sound 
D)  Bruit 
E)  Second Korotkoff sound

Exam 40: Vascular Function: Hemodynamics

The difference between lateral and end pressure is

If the flow through an artery obeys Poiseuille’s law, decreasing the radius of an artery by a factor of 2 should

The ratio of venous to arterial compliance is about

The velocity of the pressure pulse in a normal adult is about

W hich of the following is NOT one of the functions of the vasculature?

Blood pressure is measured clinical by a device called

Com pliance is DEFINED as

The dicrotic notch is caused by

The compliance of the aorta and major arteries

The difference in time between ejection of blood and the first Korotkoff sound in the brachial artery at the antecubital fossa is about (choose the best answer - obviously none are right on the money)

Flow velocity in the vasculature is greatest in the

The muffling or disappearance of the Korotkoff sound occurs at a pressure corresponding to the

Which of the following is NOT one of the assumptions for Poiseuille flow?

The largest pressure drop in the circulation occurs in the

During a routine blood pressure measurem ent, the external pressure imposed on the radial artery is just a little lower than the systolic pressure. Blood squirts through the artery and produces a noise called the

Physical Foundations Ii: Electrical Force Potential Capacitance and Current

Chemical Foundations I: Chemical Energy and Intermolecular Forces

Chemical Foundations Ii: Concentration and Kinetics

Diffusion

Electrochemical Potential and Free Energy

Cell Structure

Dna and Protein Synthesis

Protein Structure

Biological Membranes

Passive Transport and Facilitated Diffusion

Active Transport: Pumps and Exchangers

Osmosis and Osmotic Pressure

Cell Signaling

ATP Production I: Glycolysis

Atp Production Ii: Tca Cycle and Oxidative Phosphorylation

Atp Production Iii: Fatty Acid Oxidation and Amino Acid Oxidation

Origin of the Membrane Potential

The Action Potential

Propagation of the Action Potential

Skeletal Muscle Mechanics

Contractile Mechanisms in Skeletal Muscle

Neuromuscular Junction and Ec Coupling

Muscle Energetics Fatigue and Training

Smooth Muscle

Organization of the Nervous System

Cells Synapses and Neurotransmitters

Cutaneous Sensory Systems

Spinal Reflexes

Balance and Control of Movement

the Chemical Senses

Hearing

Vision

Autonomic Nervous System

Overview of the Cv System and Blood

Plasma and Red Blood Cells

White Blood Cells and Inflammation

The Heart As a Pump

Cellular Basis of Cardiac Contractility

the Cardiac Function Curve

Microcirculation and Solute Exchange

Regulation of Perfusion

Integration of Cardiac Output and Venous Return

Regulation of Arterial Pressure

Mechanics of Breathing

Lung Volumes and Airway Resistance

Gas Exchange in the Lung

Oxygen and Carbon Dioxide Transport

Acid Base Physiology I Bicarbonate Buffers and Respiratory Compensation

Control of Ventilation

Anatomy and Renal Overview

Glomerular Filtration

Tubular Reabsorption and Secretion

Concentration and Dilution of Urine

Mouth and Esophagus

The Stomach

Intestinal and Colonic Motility

Pancreatic and Biliary Secretion

Digestion and Absorption of the Macronutrients

Energy Balance and Regulation of Food Intake

General Principles of Endocrinology

Hypothalamus and Pituitary Gland

The Thyroid Gland

The Endocrine Pancreas

The Adrenal Cortex