Question 1

Match the change with the cardiovascular event described.
-When a blood vessel dilates, velocity of blood is ________.

Accepted Answer

A) increased 
B) decreased 
C) unchanged 
D) stopped 
A) increased 
B) decreased 
C) unchanged 
D) stopped B

Question 2

Match the change with the cardiovascular event described.
-The blood pressure in a vessel is 20 units at point A and 10 units at point B.One minute later, the pressure is 15 units at point A and five units at point B.Flow between those points is ________.

Accepted Answer

A) increased 
B) decreased 
C) unchanged 
D) stopped 
A) increased 
B) decreased 
C) unchanged 
D) stopped C

Question 3

Match the name of the wave with the correlated event.
-atrial contraction

Accepted Answer

A) P wave 
B) QRS complex 
C) T wave 
D) PR segment 
E) ST segment 
A) P wave 
B) QRS complex 
C) T wave 
D) PR segment 
E) ST segment D

Question 4

In order for blood to enter the heart,

Accepted Answer

A)  the atria must be in diastole. 
B)  the pressure in the atria must be lower than in the veins. 
C)  the AV valves must be open. 
D)  the atria must not only be at rest but the atrial pressure must be lower than the veins. 
E)  All of the answers are correct. 
A)  the atria must be in diastole. 
B)  the pressure in the atria must be lower than in the veins. 
C)  the AV valves must be open. 
D)  the atria must not only be at rest but the atrial pressure must be lower than the veins. 
E)  All of the answers are correct.

Question 5

The period when blood is pushed into the arteries is called ________.

Accepted Answer

ventricula

Question 6

Match each term with its definition.
-the amount of blood in the ventricle available to be pumped out of the heart during one contraction

Accepted Answer

A) cardiac output (CO) 
B) heart rate (HR) 
C) end-diastolic volume (EDV) 
D) stroke volume (SV) 
E) end-systolic volume (ESV) 
A) cardiac output (CO) 
B) heart rate (HR) 
C) end-diastolic volume (EDV) 
D) stroke volume (SV) 
E) end-systolic volume (ESV)

Question 7

The volume of blood ejected from each ventricle during a contraction is called the

Accepted Answer

A)  end-diastolic volume. 
B)  end-systolic volume. 
C)  stroke volume. 
D)  cardiac output. 
E)  cardiac reserve. 
A)  end-diastolic volume. 
B)  end-systolic volume. 
C)  stroke volume. 
D)  cardiac output. 
E)  cardiac reserve.

Question 8

Distinguish between blood flow rate and blood flow velocity.When an expert in the field uses the term blood flow, does that term usually mean rate or velocity?

Accepted Answer

Flow rate is the volume of blo

Question 9

Match the change with the cardiovascular event described.
-The blood pressure in a vessel is 10 units at point A and 10 units at point B.Flow between those points is ________.

Accepted Answer

A) increased 
B) decreased 
C) unchanged 
D) stopped 
A) increased 
B) decreased 
C) unchanged 
D) stopped

Question 10

If the connection between the AV node and bundle of His becomes blocked,

Accepted Answer

A)  the ventricles will beat faster. 
B)  the ventricles will beat more slowly. 
C)  the ventricular rate of contraction will not be affected. 
D)  the stroke volume will increase. 
E)  tachycardia will occur. 
A)  the ventricles will beat faster. 
B)  the ventricles will beat more slowly. 
C)  the ventricular rate of contraction will not be affected. 
D)  the stroke volume will increase. 
E)  tachycardia will occur.

Question 11

The duration of the action potential is ________ in contractile myocardium, ________ in autorhythmic contractile, and ________ in skeletal muscle.

Accepted Answer

extended: 200+ msec,

Question 12

________ are blood vessels that carry blood toward the heart.

Accepted Answer

The answer of ________ are blood vessels that carry blood...

Question 13

In electrocardiography, a lead is a(n)

Accepted Answer

A)  electrode. 
B)  pair of electrodes. 
C)  cable that attaches between the ECG machine and the body. 
A)  electrode. 
B)  pair of electrodes. 
C)  cable that attaches between the ECG machine and the body.

Question 14

Capillaries are best described as

Accepted Answer

A)  microscopic vessels in which blood exchanges material with the interstitial fluid. 
B)  thick walled vessels that convey blood away from the heart. 
C)  thin walled vessels that convey blood toward the heart. 
D)  thick walled vessels that carry blood rich in oxygen. 
E)  thin walled vessels that carry blood deficient in oxygen. 
A)  microscopic vessels in which blood exchanges material with the interstitial fluid. 
B)  thick walled vessels that convey blood away from the heart. 
C)  thin walled vessels that convey blood toward the heart. 
D)  thick walled vessels that carry blood rich in oxygen. 
E)  thin walled vessels that carry blood deficient in oxygen.

Question 15

The ________ are calcium channels in cardiac contractile cells.Opening them causes ________.

Accepted Answer

ryanodine receptors,

Question 16

Which of the following statements about hydrostatic pressure is NOT True?

Accepted Answer

A)  If a fluid is not moving, the pressure that it exerts is called hydrostatic pressure. 
B)  Force is not equal in all directions. 
C)  The lateral pressure component of moving fluid represents the hydrostatic pressure. 
D)  Hydrostatic pressure does not include the dynamic component of a moving fluid. 
E)  All of the statements are True. 
A)  If a fluid is not moving, the pressure that it exerts is called hydrostatic pressure. 
B)  Force is not equal in all directions. 
C)  The lateral pressure component of moving fluid represents the hydrostatic pressure. 
D)  Hydrostatic pressure does not include the dynamic component of a moving fluid. 
E)  All of the statements are True.

Question 17

Using the appropriate equations, predict the effects in each scenario.
A.Vessels X and Y have the same diameter.X is 5 cm long and Y is 10 cm long.Which has the faster velocity of flow for the same fluid?
B.A blood vessel has a radius of 4 cm.Vasoconstriction reduces the radius to 1 cm.In order to maintain the same flow, by what factor must pressure increase?
C.The blood vessel in B above dilates from 1 cm to 4 cm.Does the flow rate increase or decrease?
D.A new subdivision is built between your house and the water storage tower.If the water company makes no adjustments, will the water pressure at your house change? If so, in which direction? Why?

Accepted Answer

A. Assuming the same driving pressure, t

Question 18

Which of these will increase the heart rate?

Accepted Answer

A)  only sympathetic stimulation to the SA node 
B)  only the application of epinephrine to the SA node 
C)  only the application of acetylcholine to the SA node 
D)  both sympathetic stimulation and application of epinephrine to the SA node 
E)  both sympathetic stimulation and application of acetylcholine to the SA node 
A)  only sympathetic stimulation to the SA node 
B)  only the application of epinephrine to the SA node 
C)  only the application of acetylcholine to the SA node 
D)  both sympathetic stimulation and application of epinephrine to the SA node 
E)  both sympathetic stimulation and application of acetylcholine to the SA node

Question 19

The most proximal arteries to branch from the aorta are the ________.

Accepted Answer

The answer of The most proximal arteries to branch from...

Question 20

Narrowing of the opening of a heart valve is referred to as ________.

Accepted Answer

The answer of Narrowing of the opening of a heart...

Exam 14: Cardiovascular Physiology

Match the change with the cardiovascular event described. -When a blood vessel dilates, velocity of blood is ________.

Match the change with the cardiovascular event described. -The blood pressure in a vessel is 20 units at point A and 10 units at point B.One minute later, the pressure is 15 units at point A and five units at point B.Flow between those points is ________.

Match the name of the wave with the correlated event. -atrial contraction

In order for blood to enter the heart,

The period when blood is pushed into the arteries is called ________.

Match each term with its definition. -the amount of blood in the ventricle available to be pumped out of the heart during one contraction

The volume of blood ejected from each ventricle during a contraction is called the

Distinguish between blood flow rate and blood flow velocity.When an expert in the field uses the term blood flow, does that term usually mean rate or velocity?

Match the change with the cardiovascular event described. -The blood pressure in a vessel is 10 units at point A and 10 units at point B.Flow between those points is ________.

If the connection between the AV node and bundle of His becomes blocked,

The duration of the action potential is ________ in contractile myocardium, ________ in autorhythmic contractile, and ________ in skeletal muscle.

________ are blood vessels that carry blood toward the heart.

In electrocardiography, a lead is a(n)

Capillaries are best described as

The ________ are calcium channels in cardiac contractile cells.Opening them causes ________.

Which of the following statements about hydrostatic pressure is NOT True?

Which of these will increase the heart rate?

The most proximal arteries to branch from the aorta are the ________.

Narrowing of the opening of a heart valve is referred to as ________.

Introduction to Physiology

Molecular Interactions

Compartmentation: Cells and Tissues

Energy and Cellular Metabolism

Membrane Dynamics

Communication, Integration, and Homeostasis

Introduction to the Endocrine System

Neurons: Cellular and Network Properties

The Central Nervous System

Sensory Physiology

Efferent Division: Autonomic and Somatic Motor Control

Muscles

Integrative Physiology I: Control of Body Movement

Blood Flow and the Control of Blood Pressure

Blood

Mechanics of Breathing

Gas Exchange and Transport

The Kidneys

Integrative Physiology II: Fluid and Electrolyte Balance

The Digestive System

Metabolism and Energy Balance

Endocrine Control of Growth and Metabolism

The Immune System

Integrative Physiology III: Exercise

Reproduction and Development

Filters

The duration of the action potential is in contractile myocardium, in autorhythmic contractile, and in skeletal muscle.

The are calcium channels in cardiac contractile cells.Opening them causes .