Question 1

Which labeled structure in the heart wall diagram is responsible for the pumping action of the heart?

Accepted Answer

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

Question 2

The heart valves prevent the backflow of blood during the cardiac cycle.

Accepted Answer

A) True 
 B)False

Question 3

The step labeled 5 in the diagram of blood flow through the heart shows oxygenated blood returning from the lungs and entering the left atrium through the

Accepted Answer

A) superior and inferior vena cavae 
B) ascending and descending aorta 
C) internal and external jugular veins 
D) pulmonary arteries 
E) pulmonary veins 
A) superior and inferior vena cavae 
B) ascending and descending aorta 
C) internal and external jugular veins 
D) pulmonary arteries 
E) pulmonary veins

Question 4

The P wave of an ECG is created by the electrical activity associated with

Accepted Answer

A) atrial depolarization 
B) atrial repolarization 
C) ventricular depolarization 
D) ventricular repolarization 
E) interventricular septum depolarization 
A) atrial depolarization 
B) atrial repolarization 
C) ventricular depolarization 
D) ventricular repolarization 
E) interventricular septum depolarization

Question 5

Death of an area of cardiac muscle tissue due to an interrupted blood supply is called

Accepted Answer

A) ischemia 
B) myocardial infarction 
C) angina pectoris 
D) ventricular fibrillation 
E) myocardial ischemia 
A) ischemia 
B) myocardial infarction 
C) angina pectoris 
D) ventricular fibrillation 
E) myocardial ischemia

Question 6

Which of the following lists the correct sequence of waves that occur in an ECG of a single heartbeat?

Accepted Answer

A) QRS, T, P 
B) QRS, P, T 
C) P, QRS, T 
D) T, QRS, P 
E) P, T, QRS 
A) QRS, T, P 
B) QRS, P, T 
C) P, QRS, T 
D) T, QRS, P 
E) P, T, QRS

Question 7

Changes in the blood pressure in the aorta and carotid sinus are detected by

Accepted Answer

A) osmoreceptors 
B) baroreceptors 
C) nociceptors 
D) chemoreceptors 
E) proprioceptors 
A) osmoreceptors 
B) baroreceptors 
C) nociceptors 
D) chemoreceptors 
E) proprioceptors

Question 8

In general, heart attack risk is lower for those who exercise regularly than for those who do not.

Accepted Answer

A) True 
 B)False

Question 9

In adults, heart murmurs are often indicative of defective

Accepted Answer

A) SA nodes 
B) heart valves 
C) systemic arteries 
D) myocardial cells 
E) coronary circulation 
A) SA nodes 
B) heart valves 
C) systemic arteries 
D) myocardial cells 
E) coronary circulation

Which labeled structure in the heart wall diagram is responsible for the pumping action of the heart?

The heart valves prevent the backflow of blood during the cardiac cycle.

The step labeled 5 in the diagram of blood flow through the heart shows oxygenated blood returning from the lungs and entering the left atrium through the

The P wave of an ECG is created by the electrical activity associated with

Death of an area of cardiac muscle tissue due to an interrupted blood supply is called

Which of the following lists the correct sequence of waves that occur in an ECG of a single heartbeat?

Changes in the blood pressure in the aorta and carotid sinus are detected by

In general, heart attack risk is lower for those who exercise regularly than for those who do not.

In adults, heart murmurs are often indicative of defective

Organization of the Human Body

Introductory Chemistry

Cells

Tissues

The Integumentary System

The Skeletal System

Joints

The Muscular System

Nervous Tissue

Central Nervous System, Spinal Nerves, and Cranial Nerves

Autonomic Nervous System

Somatic Senses and Special Sense

The Endocrine System

The Cardiovascular System: Blood

The Cardiovascular System: Blood Vessels and Circulation

The Lymphatic System and Immunity

The Respiratory System

The Digestive System

Nutrition and Metabolism

The Urinary System

Fluid, Electrolyte, and Acid-Base Balance

The Reproductive Systems

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Exam 15: The Cardiovascular System: Heart

Which labeled structure in the heart wall diagram is responsible for the pumping action of the heart?

The heart valves prevent the backflow of blood during the cardiac cycle.

The step labeled 5 in the diagram of blood flow through the heart shows oxygenated blood returning from the lungs and entering the left atrium through the

The P wave of an ECG is created by the electrical activity associated with

Death of an area of cardiac muscle tissue due to an interrupted blood supply is called

Which of the following lists the correct sequence of waves that occur in an ECG of a single heartbeat?

Changes in the blood pressure in the aorta and carotid sinus are detected by

In general, heart attack risk is lower for those who exercise regularly than for those who do not.

In adults, heart murmurs are often indicative of defective

Organization of the Human Body

Introductory Chemistry

Cells

Tissues

The Integumentary System

The Skeletal System

Joints

The Muscular System

Nervous Tissue

Central Nervous System, Spinal Nerves, and Cranial Nerves

Autonomic Nervous System

Somatic Senses and Special Sense

The Endocrine System

The Cardiovascular System: Blood

The Cardiovascular System: Blood Vessels and Circulation

The Lymphatic System and Immunity

The Respiratory System

The Digestive System

Nutrition and Metabolism

The Urinary System

Fluid, Electrolyte, and Acid-Base Balance

The Reproductive Systems

Development and Inheritance

Filters