Question 1

The trabeculae carneae are structures of the heart that help add force to the contraction of the heart.

Accepted Answer

A) True 
 B)False

Question 2

If the chordae tendineae in the right side of the heart were damaged, it might cause blood to leak into the:

Accepted Answer

A) pulmonary artery during heart contraction. 
B) right ventricle during heart contraction. 
C) right atrium during heart contraction. 
D) right ventricle during heart relaxation. 
A) pulmonary artery during heart contraction. 
B) right ventricle during heart contraction. 
C) right atrium during heart contraction. 
D) right ventricle during heart relaxation.

Question 3

How would relocating a vein for the purpose of bypassing a partial blockage in the coronary arteries support a better functioning heart?

Accepted Answer

A) It would reduce the infection near the heart. 
B) It would reduce the size of an enlarged heart by removing venous blood from the damaged area, thus making the heart a better pump. 
C) It would increase the cardiac contraction ability of the heart muscle by removing venous blood from the damaged area. 
D) It would construct detours around blocked coronary arteries and return oxygen-rich blood flow to the coronary arteries. 
A) It would reduce the infection near the heart. 
B) It would reduce the size of an enlarged heart by removing venous blood from the damaged area, thus making the heart a better pump. 
C) It would increase the cardiac contraction ability of the heart muscle by removing venous blood from the damaged area. 
D) It would construct detours around blocked coronary arteries and return oxygen-rich blood flow to the coronary arteries.

Question 4

During isovolumetric ventricular contraction, the semilunar valves are closed but the AV valves are open.

Accepted Answer

A) True 
 B)False

Question 5

Match each part of the conduction system of the heart to the description of its location or function.
-Bundles that carry impulses to the atrioventricular node

Accepted Answer

A) Interatrial bundles 
B) Atrioventricular node 
C) Sinoatrial node 
D) Purkinje fibers 
E) Bundles of His
F)Internodal bundles 
A) Interatrial bundles 
B) Atrioventricular node 
C) Sinoatrial node 
D) Purkinje fibers 
E) Bundles of His
F)Internodal bundles

Question 6

The contraction of the heart is referred to as systole.

Accepted Answer

A) True 
 B)False

Question 7

The thickest layer of tissue in the heart wall is the:

Accepted Answer

A) epicardium. 
B) pericardium. 
C) myocardium. 
D) endocardium. 
A) epicardium. 
B) pericardium. 
C) myocardium. 
D) endocardium.

Question 8

Which of the following is not true of the myocardium?

Accepted Answer

A) Cells are joined by intercalated disks. 
B) The muscle cells are autorhythmic. 
C) The muscle cells can quickly summate contractions to produce tetanus. 
D) It is made of electrically coupled functional units called syncytia. 
A) Cells are joined by intercalated disks. 
B) The muscle cells are autorhythmic. 
C) The muscle cells can quickly summate contractions to produce tetanus. 
D) It is made of electrically coupled functional units called syncytia.

Question 9

Match each part of the conduction system of the heart to the description of its location or function.
-Branches that are at the terminal ends of the bundles of His

Accepted Answer

A) Interatrial bundles 
B) Atrioventricular node 
C) Sinoatrial node 
D) Purkinje fibers 
E) Bundles of His
F)Internodal bundles 
A) Interatrial bundles 
B) Atrioventricular node 
C) Sinoatrial node 
D) Purkinje fibers 
E) Bundles of His
F)Internodal bundles

Question 10

Which of the following are considered great vessels of the heart?

Accepted Answer

A) Aorta 
B) Pulmonary trunk 
C) Superior and inferior vena cavae 
D) All of the above are great vessels of the heart 
A) Aorta 
B) Pulmonary trunk 
C) Superior and inferior vena cavae 
D) All of the above are great vessels of the heart

Question 11

Atrioventricular valves prevent backflow of blood into the:

Accepted Answer

A) atria. 
B) lungs. 
C) vena cava. 
D) ventricles. 
A) atria. 
B) lungs. 
C) vena cava. 
D) ventricles.

Question 12

The right and left coronary arteries are about equally dominant in hearts: 50% of hearts are right artery dominant and 50% of hearts are left artery dominant.

Accepted Answer

A) True 
 B)False

Question 13

What is the skeleton of the heart? What is its function and what is its impact on the conduction of an electrical impulse through the heart?

Accepted Answer

The skeleton of the heart is made up of

Question 14

Passive ventricular filling occurs immediately after isovolumetric ventricular contraction.

Accepted Answer

A) True 
 B)False

Question 15

COPD refers to death of ischemic heart muscle cells.

Accepted Answer

A) True 
 B)False

Question 16

The cardiovascular system consists of the heart and blood vessels.

Accepted Answer

A) True 
 B)False

Question 17

The QRS complex represents:

Accepted Answer

A) depolarization of the atria. 
B) repolarization of the atria and depolarization of the ventricles. 
C) depolarization of both the atria and ventricles. 
D) repolarization of the ventricles. 
A) depolarization of the atria. 
B) repolarization of the atria and depolarization of the ventricles. 
C) depolarization of both the atria and ventricles. 
D) repolarization of the ventricles.

Question 18

The heart begins beating in the fetus at about what stage of development?

Accepted Answer

A) Fourth month 
B) Second month 
C) After about 4 weeks 
D) After about 2 weeks 
A) Fourth month 
B) Second month 
C) After about 4 weeks 
D) After about 2 weeks

Question 19

The pericardium is able to stretch in response to the contraction and relaxation of the heart.

Accepted Answer

A) True 
 B)False

Question 20

Epicardium and fibrous pericardium are two names for the same structure.

Accepted Answer

A) True 
 B)False

Exam 28: Heart

The trabeculae carneae are structures of the heart that help add force to the contraction of the heart.

If the chordae tendineae in the right side of the heart were damaged, it might cause blood to leak into the:

How would relocating a vein for the purpose of bypassing a partial blockage in the coronary arteries support a better functioning heart?

During isovolumetric ventricular contraction, the semilunar valves are closed but the AV valves are open.

Match each part of the conduction system of the heart to the description of its location or function. -Bundles that carry impulses to the atrioventricular node

The contraction of the heart is referred to as systole.

The thickest layer of tissue in the heart wall is the:

Which of the following is not true of the myocardium?

Match each part of the conduction system of the heart to the description of its location or function. -Branches that are at the terminal ends of the bundles of His

Which of the following are considered great vessels of the heart?

Atrioventricular valves prevent backflow of blood into the:

The right and left coronary arteries are about equally dominant in hearts: 50% of hearts are right artery dominant and 50% of hearts are left artery dominant.

What is the skeleton of the heart? What is its function and what is its impact on the conduction of an electrical impulse through the heart?

Passive ventricular filling occurs immediately after isovolumetric ventricular contraction.

COPD refers to death of ischemic heart muscle cells.

The cardiovascular system consists of the heart and blood vessels.

The QRS complex represents:

The heart begins beating in the fetus at about what stage of development?

The pericardium is able to stretch in response to the contraction and relaxation of the heart.

Epicardium and fibrous pericardium are two names for the same structure.

Organization of the Body

Homeostasis

Chemistry of Life

Biomolecules

Cell Structure

Cell Function

Cell Growth and Development

Introduction to Tissues

Tissue Types

Skin

Skeletal Tissues

Axial Skeleton

Appendicular Skeleton

Articulations

Axial Muscles

Appendicular Muscles

Muscle Contraction

Nervous System Cells

Nerve Signaling

Central Nervous System

Peripheral Nervous System

Autonomic Nervous System

General Senses

Special Senses

Endocrine Regulation

Endocrine Glands

Blood

Blood Vessels

Circulation of the Blood

Lymphatic System

Innate Immunity

Adaptive Immunity

Stress

Respiratory Tract

Ventilation

Gas Exchange Transport

Upper Digestive Tract

Lower Digestive Tract

Digestion and Absorption

Nutrition and Metabolism

Urinary System

Fluid and Electrolyte Balance

Acid-Base Balance

Male Reproductive System

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Growth, Development, and Aging

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