Question 1

A tracing of the electrical activity of the heart, monitored by electrodes placed on the skin, is called a(n)________.

Accepted Answer

The answer of A tracing of the electrical activity of...

Question 2

The term that describes the volume of blood circulated by the heart in one minute is

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 3

Which statement is NOT True regarding cardiac muscle?

Accepted Answer

A)  Cardiac muscle cells must obey the all-or-none law of contraction. 
B)  Cardiac muscle cells rely on a sarcoplasmic reticulum for storage of Ca²⁺ ions. 
C)  Calcium-induced calcium release is the process by which extracellular Ca²⁺ triggers the release of stored Ca²⁺ from the sarcoplasmic reticulum. 
D)  Intercalated disks contain both desmosomes for firm attachment and gap junctions to allow communication. 
E)  The oxygen demand of cardiac muscle cells is high because they have many mitochondria. 
A)  Cardiac muscle cells must obey the all-or-none law of contraction. 
B)  Cardiac muscle cells rely on a sarcoplasmic reticulum for storage of Ca²⁺ ions. 
C)  Calcium-induced calcium release is the process by which extracellular Ca²⁺ triggers the release of stored Ca²⁺ from the sarcoplasmic reticulum. 
D)  Intercalated disks contain both desmosomes for firm attachment and gap junctions to allow communication. 
E)  The oxygen demand of cardiac muscle cells is high because they have many mitochondria.

Question 4

Compare and contrast the action potentials in the skeletal muscle, contractile myocardium, and autorhythmic myocardium.

Accepted Answer

See the "Cardiac Mus

Question 5

Match the following terms to the correct answer:
-a semilunar valve that has the right ventricle on one side

Accepted Answer

A) tricuspid valve 
B) bicuspid valve 
C) aortic valve 
D) pulmonary valve 
A) tricuspid valve 
B) bicuspid valve 
C) aortic valve 
D) pulmonary valve

Question 6

Match each term with its definition.
-the volume of blood circulated by the heart in one minute

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

Compare and contrast cardiac muscle and skeletal muscle.

Accepted Answer

See the "C

Question 8

Which of the following will increase flow in a vessel the most?

Accepted Answer

A)  decrease length by 1 unit 
B)  increase radius by 1 unit 
C)  decrease viscosity by 1 unit 
D)  All have the same effect on flow. 
A)  decrease length by 1 unit 
B)  increase radius by 1 unit 
C)  decrease viscosity by 1 unit 
D)  All have the same effect on flow.

Question 9

In the heart, valves are located

Accepted Answer

A)  just between the atria and the ventricles. 
B)  just between the ventricles and the arteries. 
C)  just between the great veins and the atria. 
D)  between atria and ventricles and between ventricles and arteries. 
E)  just between the right and left ventricles. 
A)  just between the atria and the ventricles. 
B)  just between the ventricles and the arteries. 
C)  just between the great veins and the atria. 
D)  between atria and ventricles and between ventricles and arteries. 
E)  just between the right and left ventricles.

Question 10

The cardiovascular system is made up of ________, ________, and ________.

Accepted Answer

the heart, blood ves

Question 11

Draw a diagram of the excitation-contraction coupling and relaxation in cardiac muscles.

Accepted Answer

See Figure

Question 12

If the stroke volume of the left ventricle is 65 mL/beat and the stroke volume of the right ventricle is 68 mL/beat, what will happen to the relative distribution of blood in the systemic and pulmonary circulation after 15 beats?

Accepted Answer

With each heartbeat, the left side will

Question 13

Name the three portal systems in the body.

Accepted Answer

1.hepatic portal sys

Question 14

The period of time from the beginning of one heartbeat to the beginning of the next is termed the ________.

Accepted Answer

The answer of The period of time from the beginning...

Question 15

A certain drug decreases heart rate by producing hyperpolarization in the pacemaker cells of the heart.This drug probably binds to

Accepted Answer

A)  nicotinic receptors. 
B)  muscarinic receptors. 
C)  alpha adrenergic receptors. 
D)  beta receptors. 
A)  nicotinic receptors. 
B)  muscarinic receptors. 
C)  alpha adrenergic receptors. 
D)  beta receptors.

Question 16

During ventricular ejection,

Accepted Answer

A)  the ventricles are in systole. 
B)  the QRS complex is just starting. 
C)  the semilunar valves are closed. 
D)  the AV valves are open. 
E)  blood is forced into veins. 
A)  the ventricles are in systole. 
B)  the QRS complex is just starting. 
C)  the semilunar valves are closed. 
D)  the AV valves are open. 
E)  blood is forced into veins.

Question 17

Explain why a heart can keep beating after it has been removed from a living body.

Accepted Answer

Heart tissue is auto

Question 18

The ________ circuit carries blood to and from all parts of the body except the alveoli of the lungs.

Accepted Answer

The answer of The ________ circuit carries blood to and...

Question 19

The fibrous skeleton of the heart is important because it

Accepted Answer

A)  forces electrical activity to be conducted through the atrioventricular node. 
B)  transmits electrical activity from the atria to the ventricles. 
C)  helps guide the blood into the proper chambers in sequence. 
D)  directs the flow of blood into the arteries. 
A)  forces electrical activity to be conducted through the atrioventricular node. 
B)  transmits electrical activity from the atria to the ventricles. 
C)  helps guide the blood into the proper chambers in sequence. 
D)  directs the flow of blood into the arteries.

Question 20

A resting heart rate above 100 beats per minute is identified as ________.

Accepted Answer

The answer of A resting heart rate above 100 beats...

Exam 14: Cardiovascular Physiology

A tracing of the electrical activity of the heart, monitored by electrodes placed on the skin, is called a(n)________.

The term that describes the volume of blood circulated by the heart in one minute is

Which statement is NOT True regarding cardiac muscle?

Compare and contrast the action potentials in the skeletal muscle, contractile myocardium, and autorhythmic myocardium.

Match the following terms to the correct answer: -a semilunar valve that has the right ventricle on one side

Match each term with its definition. -the volume of blood circulated by the heart in one minute

Compare and contrast cardiac muscle and skeletal muscle.

Which of the following will increase flow in a vessel the most?

In the heart, valves are located

The cardiovascular system is made up of ________, ________, and ________.

Draw a diagram of the excitation-contraction coupling and relaxation in cardiac muscles.

If the stroke volume of the left ventricle is 65 mL/beat and the stroke volume of the right ventricle is 68 mL/beat, what will happen to the relative distribution of blood in the systemic and pulmonary circulation after 15 beats?

Name the three portal systems in the body.

The period of time from the beginning of one heartbeat to the beginning of the next is termed the ________.

A certain drug decreases heart rate by producing hyperpolarization in the pacemaker cells of the heart.This drug probably binds to

During ventricular ejection,

Explain why a heart can keep beating after it has been removed from a living body.

The ________ circuit carries blood to and from all parts of the body except the alveoli of the lungs.

The fibrous skeleton of the heart is important because it

A resting heart rate above 100 beats per minute is identified 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 cardiovascular system is made up of , , and .