Question 1

Excess fluid in the ________ causes cardiac tamponade.

Accepted Answer

A) pericardial cavity 
B) visceral pericardium 
C) apex of heart 
D) left ventricle 
E) both atria 
A) pericardial cavity 
B) visceral pericardium 
C) apex of heart 
D) left ventricle 
E) both atria A

Question 2

When the left ventricle contracts,the diameter of the ventricular chamber

Accepted Answer

A) increases. 
B) decreases. 
C) remains the same. 
A) increases. 
B) decreases. 
C) remains the same. B

Question 3

The ________ is the volume of blood in a ventricle at the beginning of systole.

Accepted Answer

end-diastolic volume

Question 4

Rupture of the papillary muscles in the left ventricle may result in

Accepted Answer

A) mitral regurgitation. 
B) mitral valve prolapse. 
C) bicuspid regurgitation. 
D) bicuspid prolapse. 
E) All of the answers are correct. 
A) mitral regurgitation. 
B) mitral valve prolapse. 
C) bicuspid regurgitation. 
D) bicuspid prolapse. 
E) All of the answers are correct.

Question 5

The left ventricle pumps blood to the

Accepted Answer

A) lungs. 
B) right ventricle. 
C) right atrium. 
D) aorta. 
E) pulmonary circuit. 
A) lungs. 
B) right ventricle. 
C) right atrium. 
D) aorta. 
E) pulmonary circuit.

Question 6

The term ________ refers to blockage in the coronary circulation.

Accepted Answer

coronary a

Question 7

Which of the following are involved in the pulmonary circuit?

Accepted Answer

A) superior vena cava,right atrium,left ventricle 
B) right ventricle,pulmonary veins,aorta 
C) right ventricle,pulmonary trunk,left atrium 
D) inferior vena cava,right atrium,aorta 
E) left ventricle,pulmonary veins,right atrium 
A) superior vena cava,right atrium,left ventricle 
B) right ventricle,pulmonary veins,aorta 
C) right ventricle,pulmonary trunk,left atrium 
D) inferior vena cava,right atrium,aorta 
E) left ventricle,pulmonary veins,right atrium

Question 8

Cells that spontaneously make action potentials make up ________ tissue.

Accepted Answer

nodal (or

Question 9

Compared to the right ventricle,the left ventricle has all the following characteristics,except that it

Accepted Answer

A) has a thicker wall. 
B) is round in cross section. 
C) pumps a greater volume. 
D) works harder. 
E) produces about four to six times more pressure when it contracts. 
A) has a thicker wall. 
B) is round in cross section. 
C) pumps a greater volume. 
D) works harder. 
E) produces about four to six times more pressure when it contracts.

Question 10

The heart has four chambers,two small thin-walled atria and two large muscular ________.

Accepted Answer

The answer of The heart has four chambers,two small thin-walled...

Question 11

The amount of blood remaining in the ventricle when the semilunar valve closes is the ________.

Accepted Answer

end-systol

Question 12

The left border of the heart is formed by the ________ and a small portion of the left atrium.

Accepted Answer

The answer of The left border of the heart is...

Question 13

During ventricular systole,the

Accepted Answer

A) atria are contracting. 
B) blood is entering the ventricles. 
C) AV valves are closed. 
D) pressure in the ventricles remains constant. 
E) pressure in the aorta remains constant. 
A) atria are contracting. 
B) blood is entering the ventricles. 
C) AV valves are closed. 
D) pressure in the ventricles remains constant. 
E) pressure in the aorta remains constant.

Question 14

Figure 20-2 Cardiac Cycle
Use Figure 20-2 to answer the following question:
-What occurs at the circled label "5" on the graph?

Accepted Answer

A) peak systolic pressure 
B) isovolumetric systole 
C) isovolumetric contraction 
D) ventricular refilling 
E) increased heart rate 
A) peak systolic pressure 
B) isovolumetric systole 
C) isovolumetric contraction 
D) ventricular refilling 
E) increased heart rate

Question 15

Blood returning to the heart from the pulmonary circuit first enters the

Accepted Answer

A) right atrium. 
B) right ventricle. 
C) left atrium. 
D) left ventricle. 
E) conus arteriosus. 
A) right atrium. 
B) right ventricle. 
C) left atrium. 
D) left ventricle. 
E) conus arteriosus.

Question 16

The ________ deliver(s)blood to the myocardium.

Accepted Answer

A) coronary arteries 
B) cardiac veins 
C) superior vena cava 
D) carotid arteries 
E) coronary sinus 
A) coronary arteries 
B) cardiac veins 
C) superior vena cava 
D) carotid arteries 
E) coronary sinus

Question 17

The heart beats approximately ________ times each day.

Accepted Answer

A) 1,000 
B) 10,000 
C) 100,000 
D) 1,000,000 
E) 10,000,000 
A) 1,000 
B) 10,000 
C) 100,000 
D) 1,000,000 
E) 10,000,000

Question 18

The heart is innervated by ________ nerves.

Accepted Answer

A) parasympathetic 
B) sympathetic 
C) both parasympathetic and sympathetic 
D) neither parasympathetic nor sympathetic 
E) somatomotor 
A) parasympathetic 
B) sympathetic 
C) both parasympathetic and sympathetic 
D) neither parasympathetic nor sympathetic 
E) somatomotor

Question 19

Which chamber receives oxygenated blood from the pulmonary circuit?

Accepted Answer

A) 5 
B) 10 
C) 16 
D) 13 
E) both 5 and 16 
A) 5 
B) 10 
C) 16 
D) 13 
E) both 5 and 16

Question 20

The first blood vessels to branch from the aorta are the ________ arteries.

Accepted Answer

A) pulmonary 
B) coronary 
C) circumflex 
D) carotid 
E) subclavian 
A) pulmonary 
B) coronary 
C) circumflex 
D) carotid 
E) subclavian

Exam 20: The Heart

Excess fluid in the ________ causes cardiac tamponade.

When the left ventricle contracts,the diameter of the ventricular chamber

The ________ is the volume of blood in a ventricle at the beginning of systole.

Rupture of the papillary muscles in the left ventricle may result in

The left ventricle pumps blood to the

The term ________ refers to blockage in the coronary circulation.

Which of the following are involved in the pulmonary circuit?

Cells that spontaneously make action potentials make up ________ tissue.

Compared to the right ventricle,the left ventricle has all the following characteristics,except that it

The heart has four chambers,two small thin-walled atria and two large muscular ________.

The amount of blood remaining in the ventricle when the semilunar valve closes is the ________.

The left border of the heart is formed by the ________ and a small portion of the left atrium.

During ventricular systole,the

Figure 20-2 Cardiac Cycle Use Figure 20-2 to answer the following question: -What occurs at the circled label "5" on the graph?

Blood returning to the heart from the pulmonary circuit first enters the

The ________ deliver(s)blood to the myocardium.

The heart beats approximately ________ times each day.

The heart is innervated by ________ nerves.

Which chamber receives oxygenated blood from the pulmonary circuit?

The first blood vessels to branch from the aorta are the ________ arteries.

An Introduction to Anatomy and Physiology

The Chemical Level of Organization

The Cellular Level of Organization

The Tissue Level of Organization

The Integumentary System

Osseous Tissue and Bone Structure

The Axial Skeleton

The Appendicular Skeleton

Articulations

Muscle Tissue

The Muscular System

Neural Tissue

The Spinal Cord, spinal Nerves, and Spinal Reflexes

The Brain and Cranial Nerves

Neural Integration I: Sensory Pathways and the Somatic Nervous System

Neural Integration Ii: the Autonomic Nervous System and

The Special Senses

The Endocrine System

Blood

Blood Vessels and Circulation

The Lymphatic System and Immunity

The Respiratory System

The Digestive System

Metabolism and Energetics

The Urinary System

Fluid, electrolyte, and Acid-Base Balance

The Reproductive System

Development and Inheritance

Filters