Question 1

Cardiac muscle cells and skeletal muscle cells differ in a few ways.Which of the following is not one of them?

Accepted Answer

A) Cardiac muscle cells are smaller in size. 
B) Cardiac muscle cells have a single,centered nucleus. 
C) Cardiac muscle cells branch. 
D) Skeletal muscle cells lack intercalated discs. 
E) Cardiac muscle cells lack transverse tubules. 
A) Cardiac muscle cells are smaller in size. 
B) Cardiac muscle cells have a single,centered nucleus. 
C) Cardiac muscle cells branch. 
D) Skeletal muscle cells lack intercalated discs. 
E) Cardiac muscle cells lack transverse tubules.

Question 2

The great and middle cardiac veins drain blood into the

Accepted Answer

A) superior vena cava. 
B) inferior vena cava. 
C) coronary sinus. 
D) coronary sulcus. 
E) aorta. 
A) superior vena cava. 
B) inferior vena cava. 
C) coronary sinus. 
D) coronary sulcus. 
E) aorta.

Question 3

The heart pumps approximately ________ liters of blood each day.

Accepted Answer

A) 8,000 
B) 15,000 
C) 20,000 
D) 50,000 
E) 100,000 
A) 8,000 
B) 15,000 
C) 20,000 
D) 50,000 
E) 100,000

Question 4

Figure 20-1 The Heart
Use Figure 20-1 to answer the following questions:
-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 5

The ________ circuit carries blood to and from the lungs.

Accepted Answer

A) pulmonary 
B) systemic 
C) oxygen 
D) portal 
E) body 
A) pulmonary 
B) systemic 
C) oxygen 
D) portal 
E) body

Question 6

Figure 20-1 The Heart
Use Figure 20-1 to answer the following questions:
-Identify the structure labeled "2 1."

Accepted Answer

A) bicuspid valve 
B) pulmonary semilunar valve 
C) aortic semilunar valve 
D) ligamentum arteriosum 
E) tricuspid valve 
A) bicuspid valve 
B) pulmonary semilunar valve 
C) aortic semilunar valve 
D) ligamentum arteriosum 
E) tricuspid valve

Question 7

The following is a list of vessels and structures that are associated with the heart.What is the correct order for the flow of blood entering from the systemic circulation?
1)right atrium
2)left atrium
3)right ventricle
4)left ventricle
5)venae cavae
6)aorta
7)pulmonary trunk
8)pulmonary veins

Accepted Answer

A) 1,2,7,8,3,4,6,5 
B) 1,7,3,8,2,4,6,5 
C) 5,1,3,7,8,2,4,6 
D) 5,3,1,7,8,4,2,6 
E) 5,1,3,8,7,2,4,6 
A) 1,2,7,8,3,4,6,5 
B) 1,7,3,8,2,4,6,5 
C) 5,1,3,7,8,2,4,6 
D) 5,3,1,7,8,4,2,6 
E) 5,1,3,8,7,2,4,6

Question 8

The ________ carry blood away from the heart.

Accepted Answer

A) arterioles 
B) arteries 
C) veins 
D) venules 
E) capillaries 
A) arterioles 
B) arteries 
C) veins 
D) venules 
E) capillaries

Question 9

The ________ is the difference between the resting and maximal cardiac output.

Accepted Answer

A) end-systolic volume 
B) end-diastolic volume 
C) cardiac reserve 
D) stroke volume 
E) ejection fraction 
A) end-systolic volume 
B) end-diastolic volume 
C) cardiac reserve 
D) stroke volume 
E) ejection fraction

Question 10

As blood leaves the right ventricle,it passes through the ________ and then into the pulmonary trunk.

Accepted Answer

A) pulmonary veins 
B) conus arteriosus 
C) aorta 
D) inferior vena cava 
E) superior vena cava 
A) pulmonary veins 
B) conus arteriosus 
C) aorta 
D) inferior vena cava 
E) superior vena cava

Question 11

The superior portion of the heart where major blood vessels enter and exit is the

Accepted Answer

A) apex. 
B) hilum. 
C) base. 
D) septum. 
E) mediastinum. 
A) apex. 
B) hilum. 
C) base. 
D) septum. 
E) mediastinum.

Question 12

Intercalated discs serve to transfer ________ from cell to cell.

Accepted Answer

A) ionic currents 
B) action potentials 
C) the force of contraction 
D) electrical signals 
E) All of the answers are correct. 
A) ionic currents 
B) action potentials 
C) the force of contraction 
D) electrical signals 
E) All of the answers are correct.

Exam 20: The Heart

Cardiac muscle cells and skeletal muscle cells differ in a few ways.Which of the following is not one of them?

The great and middle cardiac veins drain blood into the

The heart pumps approximately ________ liters of blood each day.

Figure 20-1 The Heart Use Figure 20-1 to answer the following questions: -Which chamber receives oxygenated blood from the pulmonary circuit?

The ________ circuit carries blood to and from the lungs.

Figure 20-1 The Heart Use Figure 20-1 to answer the following questions: -Identify the structure labeled "2 1."

The following is a list of vessels and structures that are associated with the heart.What is the correct order for the flow of blood entering from the systemic circulation? 1)right atrium 2)left atrium 3)right ventricle 4)left ventricle 5)venae cavae 6)aorta 7)pulmonary trunk 8)pulmonary veins

The ________ carry blood away from the heart.

The ________ is the difference between the resting and maximal cardiac output.

As blood leaves the right ventricle,it passes through the ________ and then into the pulmonary trunk.

The superior portion of the heart where major blood vessels enter and exit is the

Intercalated discs serve to transfer ________ from cell to cell.

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

Joints

Muscle Tissue

The Muscular System

Neural Tissue

The Spinal Cord, spinal Nerves, and Spinal Reflexes

The Brain and Cranial Nerves

Sensory Pathways and the Somatic Nervous System

The Autonomic Nervous System and Higher-Order Functions

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