Question 1

Which labeled blood vessel in the diagram is an artery carrying deoxygenated blood?

Accepted Answer

A) A 
B) B 
C) C 
D) E 
E) F 
A) A 
B) B 
C) C 
D) E 
E) F

Question 2

Identify the structure found in a fetus that allows blood to flow directly from the pulmonary trunk into the aorta.

Accepted Answer

A) Fossa ovalis 
B) Foramen ovale 
C) Trabeculae carneae 
D) Descending aorta 
E) Ductus arteriosus 
A) Fossa ovalis 
B) Foramen ovale 
C) Trabeculae carneae 
D) Descending aorta 
E) Ductus arteriosus

Question 3

Heart murmurs are often heard in individuals with abnormalities in the [dropdown 1] of the heart.
Dropdown Choices:
AV node
endocardium
myocardium
SA node
valves

Accepted Answer

The answer of Heart murmurs are often heard in individuals...

Question 4

The coronary sulcus marks the external boundary between the [dropdown 1] and the [dropdown 2].
Dropdown 1 Choices:
auricles
coronary arteries
coronary sinus
superior atria
Dropdown 2 Choices:
apex
auricles
base
inferior ventricles

Accepted Answer

1.superior

Question 5

In the diagram,which labeled structure prevents blood flow from the right ventricle back into the right atrium?

Accepted Answer

A) A 
B) B 
C) C 
D) D 
E) E 
A) A 
B) B 
C) C 
D) D 
E) E

Question 6

Prior to physical activity,the heart rate may climb.This anticipatory increase is caused by nerve impulses traveling to the cardiovascular center of the medulla oblongata that originate in the

Accepted Answer

A) cerebral cortex 
B) hypothalamus 
C) baroreceptors 
D) limbic system 
E) proprioceptors 
A) cerebral cortex 
B) hypothalamus 
C) baroreceptors 
D) limbic system 
E) proprioceptors

Question 7

Which of the following electrocardiogram (ECG)waves represents atrial depolarization?

Accepted Answer

A) R wave 
B) T wave 
C) S wave 
D) P wave 
E) Q wave 
A) R wave 
B) T wave 
C) S wave 
D) P wave 
E) Q wave

Question 8

Athletes tend to have higher cardiac reserves because

Accepted Answer

A) they produce less epinephrine. 
B) they eat more protein and vitamins. 
C) their hearts operate more efficiently due to training 
D) they take in less oxygen than average individuals 
E) they put out more carbon dioxide than average individuals 
A) they produce less epinephrine. 
B) they eat more protein and vitamins. 
C) their hearts operate more efficiently due to training 
D) they take in less oxygen than average individuals 
E) they put out more carbon dioxide than average individuals

Question 9

The difference between a person's maximum cardiac output and resting cardiac output is called the

Accepted Answer

A) stroke volume. 
B) peripheral resistance. 
C) afterload. 
D) cardiac reserve. 
E) venous return. 
A) stroke volume. 
B) peripheral resistance. 
C) afterload. 
D) cardiac reserve. 
E) venous return.

Question 10

Which network of specialized cardiac muscle fibers provides a path for each cycle of cardiac excitation to progress through the heart?

Accepted Answer

A) Systemic circuit 
B) Intercalated discs 
C) Cardiovascular center 
D) Cardiac conduction system 
E) Pulmonary circuit 
A) Systemic circuit 
B) Intercalated discs 
C) Cardiovascular center 
D) Cardiac conduction system 
E) Pulmonary circuit

Question 11

Which week of fetal development might be considered the stage of development of the heart with the chambers as they will be oriented for the rest of the individual's life?

Accepted Answer

A) fourth 
B) fifth 
C) sixth 
D) seventh 
E) eighth 
A) fourth 
B) fifth 
C) sixth 
D) seventh 
E) eighth

Question 12

A patient presents with a fever,heart murmur,irregular heartbeat,fatigue,loss of appetite and night sweats.As a physician,your diagnosis would be that of endocarditis typically caused by

Accepted Answer

A) a virus 
B) an autoimmune condition 
C) a bacterial infection 
D) exposure to radiation 
E) cancer 
A) a virus 
B) an autoimmune condition 
C) a bacterial infection 
D) exposure to radiation 
E) cancer

Question 13

The formula for calculating cardiac output (CO)is

Accepted Answer

A) heart rate multiplied by cardiac reserve 
B) heart rate multiplied by end diastolic volume 
C) heart rate multiplied by stroke volume 
D) end diastolic volume multiplied by cardiac reserve 
E) venous return multiplied by stroke volume 
A) heart rate multiplied by cardiac reserve 
B) heart rate multiplied by end diastolic volume 
C) heart rate multiplied by stroke volume 
D) end diastolic volume multiplied by cardiac reserve 
E) venous return multiplied by stroke volume

Question 14

Which of the labeled steps in the diagram represents formation of the endocardial tubes?

Accepted Answer

A) A 
B) B 
C) C 
D) D 
E) E 
A) A 
B) B 
C) C 
D) D 
E) E

Question 15

Which of the following types of muscle contains the largest number of mitochondria per cell?

Accepted Answer

A) Smooth muscle 
B) Skeletal muscle 
C) Cardiac muscle 
D) All the muscle types contain approximately the same number. 
E) Mitochondria are not found in muscle cells. 
A) Smooth muscle 
B) Skeletal muscle 
C) Cardiac muscle 
D) All the muscle types contain approximately the same number. 
E) Mitochondria are not found in muscle cells.

Question 16

Which of the following is a corrective cardiac procedure in which a large piece of a patient's own latissimus dorsi muscle is wrapped around the heart and stimulated by an implanted pacemaker to assist the pumping action of a damaged heart?

Accepted Answer

A) cardioversion 
B) cardiogenic transplant 
C) cardiomyopathy 
D) cardiomegaly 
E) cardiomyoplasty 
A) cardioversion 
B) cardiogenic transplant 
C) cardiomyopathy 
D) cardiomegaly 
E) cardiomyoplasty

Question 17

Explain how the heart pumps blood into two separate closed circuits that are arranged in series.

Accepted Answer

The two circuits are the pulmonary and s

Question 18

Which of the following chambers of the heart contains deoxygenated blood?

Accepted Answer

A) Left atrium and left ventricle 
B) Left atrium only 
C) Right atrium and right ventricle 
D) Right ventricle only 
E) Left atrium and right ventricle 
A) Left atrium and left ventricle 
B) Left atrium only 
C) Right atrium and right ventricle 
D) Right ventricle only 
E) Left atrium and right ventricle

Question 19

Which term refers to the period of time during a cardiac cycle when contraction of a chamber occurs and pressure within the chamber rises?

Accepted Answer

A) filling 
B) systole 
C) repolarization 
D) diastole 
E) fibrillation 
A) filling 
B) systole 
C) repolarization 
D) diastole 
E) fibrillation

Question 20

Which wave in an electrocardiogram represents repolarization of the ventricles?

Accepted Answer

A) R wave 
B) T wave 
C) S wave 
D) P wave 
E) Q wave 
A) R wave 
B) T wave 
C) S wave 
D) P wave 
E) Q wave

Exam 20: The Cardiovascular System: the Heart

Which labeled blood vessel in the diagram is an artery carrying deoxygenated blood?

Identify the structure found in a fetus that allows blood to flow directly from the pulmonary trunk into the aorta.

Heart murmurs are often heard in individuals with abnormalities in the [dropdown 1] of the heart. Dropdown Choices: AV node endocardium myocardium SA node valves

The coronary sulcus marks the external boundary between the [dropdown 1] and the [dropdown 2]. Dropdown 1 Choices: auricles coronary arteries coronary sinus superior atria Dropdown 2 Choices: apex auricles base inferior ventricles

In the diagram,which labeled structure prevents blood flow from the right ventricle back into the right atrium?

Prior to physical activity,the heart rate may climb.This anticipatory increase is caused by nerve impulses traveling to the cardiovascular center of the medulla oblongata that originate in the

Which of the following electrocardiogram (ECG)waves represents atrial depolarization?

Athletes tend to have higher cardiac reserves because

The difference between a person's maximum cardiac output and resting cardiac output is called the

Which network of specialized cardiac muscle fibers provides a path for each cycle of cardiac excitation to progress through the heart?

Which week of fetal development might be considered the stage of development of the heart with the chambers as they will be oriented for the rest of the individual's life?

A patient presents with a fever,heart murmur,irregular heartbeat,fatigue,loss of appetite and night sweats.As a physician,your diagnosis would be that of endocarditis typically caused by

The formula for calculating cardiac output (CO)is

Which of the labeled steps in the diagram represents formation of the endocardial tubes?

Which of the following types of muscle contains the largest number of mitochondria per cell?

Which of the following is a corrective cardiac procedure in which a large piece of a patient's own latissimus dorsi muscle is wrapped around the heart and stimulated by an implanted pacemaker to assist the pumping action of a damaged heart?

Explain how the heart pumps blood into two separate closed circuits that are arranged in series.

Which of the following chambers of the heart contains deoxygenated blood?

Which term refers to the period of time during a cardiac cycle when contraction of a chamber occurs and pressure within the chamber rises?

Which wave in an electrocardiogram represents repolarization of the ventricles?

An Introduction to the Human Body

The Chemical Level of Organization

The Cellular Level of Organization

The Tissue Level of Organization

The Integumentary System

The Skeletal System: Bone Tissue

The Skeletal System: the Axial Skeleton

The Skeletal System: The Appendicular Skeleton

Joints

Muscular Tissue

The Muscular System

Nervous Tissue

The Spinal Cord and Spinal Nerves

The Brain and Cranial Nerves

The Autonomic Nervous System

Sensory, Motor, and Integrative Systems

The Special Senses

The Endocrine System

The Cardiovascular System: the Blood

The Cardiovascular System: Blood Vessels and Hemodynamics

The Lymphatic System and Immunity

The Respiratory System

The Digestive System

Metabolism and Nutrition

The Urinary System

Fluid, Electrolyte, and Acidbase Homeostasis

The Reproductive Systems

Development and Inheritance

Filters