Anatomy and Physiology of the Heart: Interactive Learning Quizzes

Question 1

Which chamber of the heart receives oxygen-rich blood from the lungs?

Accepted Answer

Left atrium

Answer

Right atrium

Answer

Right ventricle

Answer

Left ventricle

Question 2

Where is the atrioventricular node (AV node) located?

Accepted Answer

Between the atria and ventricles, on the interatrial septum

Answer

Within the right atrium, near the superior vena cava

Answer

Within the left ventricle, close to the apex

Answer

Between the ventricles, on the interventricular septum

Question 3

Which of the following is NOT a chamber of the heart?

Accepted Answer

Pericardium

Answer

Right atrium

Answer

Left ventricle

Answer

Right ventricle

Question 4

Which valve separates the right atrium from the right ventricle?

Accepted Answer

Tricuspid valve

Answer

Mitral valve

Answer

Aortic valve

Answer

Pulmonary valve

Question 5

What is the name of the electrical impulse generated by the heart's sinoatrial node (SA node)?

Accepted Answer

P wave

Answer

QRS complex

Answer

T wave

Answer

U wave

Question 6

What is the name of the protective sac that surrounds the heart?

Accepted Answer

Pericardial sac

Answer

Endocardium

Answer

Epicardium

Answer

Myocardium

Question 7

Which of the following is a common symptom of a heart attack?

Accepted Answer

Chest pain

Answer

Shortness of breath

Answer

Nausea

Answer

Dizziness

Question 8

What heart condition is caused by narrowed coronary arteries, reducing blood flow to the heart muscle?

Accepted Answer

Coronary Artery Disease

Answer

Congestive Heart Failure

Answer

Arrhythmia

Answer

Cardiomyopathy

Question 9

In what sequence does blood flow through the heart chambers?

Accepted Answer

Right atrium → Right ventricle → Left atrium → Left ventricle

Answer

Left atrium → Left ventricle → Right atrium → Right ventricle

Answer

Right ventricle → Right atrium → Left ventricle → Left atrium

Answer

Left ventricle → Left atrium → Right ventricle → Right atrium

Question 10

Which type of blood vessel carries oxygenated blood away from the heart?

Accepted Answer

Artery

Answer

Vein

Answer

Capillary

Answer

Lymph node

Question 11

What is the primary purpose of an electrocardiogram (EKG)?

Accepted Answer

To record the electrical activity of the heart

Answer

To measure blood pressure

Answer

To detect heart murmurs

Answer

To diagnose heart disease

Question 12

Which of the following blood vessels carries deoxygenated blood from the body to the heart?

Accepted Answer

Inferior vena cava

Answer

Superior vena cava

Answer

Pulmonary artery

Answer

Aorta

Question 13

What is the term for the electrical signal that initiates the contraction of the heart?

Accepted Answer

Action potential

Answer

Depolarization

Answer

Hyperpolarization

Answer

Repolarization

Question 14

What is the name of the specialized pathway that conducts the electrical impulse rapidly from the atrioventricular node to the ventricles?

Accepted Answer

Bundle of His

Answer

Sinoatrial node

Answer

Purkinje fibers

Answer

Myocardial fibers

Question 15

Which of the following is a characteristic finding of ventricular tachycardia on an EKG?

Accepted Answer

Regular, wide QRS complexes

Answer

Irregular, narrow QRS complexes

Answer

Inverted T waves

Answer

Prolonged PR interval

Question 16

Which of the following is NOT a major risk factor for cardiovascular disease?

Accepted Answer

Regular exercise

Answer

Smoking

Answer

Obesity

Answer

High blood pressure

Question 17

What is the primary purpose of a stress test?

Accepted Answer

To evaluate the heart's response to physical exertion

Answer

To detect arrhythmias that may not be present during rest

Answer

To assess the severity of heart valve disease

Answer

To determine the ejection fraction of the heart

Question 18

Which phase of the cardiac cycle involves the heart muscle relaxing and filling with blood?

Accepted Answer

Diastole

Answer

Systole

Answer

Ischemia

Question 19

Which of the following valves prevents backflow of blood into the left atrium?

Accepted Answer

Mitral valve

Answer

Tricuspid valve

Answer

Aortic valve

Answer

Pulmonary valve

Question 20

What is the name of the specialized tissue that generates the electrical impulse that triggers the heartbeat?

Accepted Answer

Sinoatrial node

Answer

Action potential

Answer

Depolarization

Answer

Repolarization

Question 21

What blood vessels are responsible for supplying oxygenated blood to the heart muscle?

Accepted Answer

Coronary arteries

Answer

Pulmonary arteries

Answer

Aorta

Answer

Vena cavae

Question 22

Which of the following blood vessels carries oxygenated blood away from the heart to the rest of the body?

Accepted Answer

Aorta

Answer

Pulmonary artery

Answer

Vena cava

Answer

Coronary artery

Question 23

What is the primary function of the sinoatrial node (SA node)?

Accepted Answer

To initiate the electrical impulse for the heartbeat

Answer

To conduct the electrical impulse to the ventricles

Answer

To regulate heart rate

Answer

To prevent electrical disturbances

Question 24

Which EKG finding indicates a delay in electrical conduction through the atrioventricular node?

Accepted Answer

Prolonged PR interval

Answer

Shortened PR interval

Answer

Narrow QRS complex

Question 25

Which EKG waveform directly corresponds to the contraction of the ventricles?

Accepted Answer

QRS complex

Answer

P wave

Answer

T wave

Answer

U wave

Question 26

Which chamber of the heart is responsible for pumping oxygenated blood to the body?

Accepted Answer

Left ventricle

Answer

Right atrium

Answer

Left atrium

Answer

Right ventricle

Question 27

What structure connects the right ventricle to the pulmonary artery?

Accepted Answer

Pulmonary trunk

Answer

Aorta

Answer

Pulmonary vein

Answer

Tricuspid valve

Question 28

What type of tissue composes the heart's electrical conduction system?

Accepted Answer

Nerve tissue

Answer

Cardiac muscle

Answer

Smooth muscle

Answer

Skeletal muscle

Question 29

The rhythmic contraction and relaxation of the heart is known as:

Accepted Answer

Cardiac cycle

Answer

Heart rate

Answer

Electrocardiogram

Answer

Blood pressure

Question 30

During which phase of the cardiac cycle does the heart muscle contract?

Accepted Answer

Systole

Answer

Diastole

Answer

Ischemia

Answer

Reperfusion

Question 31

Which coronary artery supplies blood to the left ventricle?

Accepted Answer

Left anterior descending artery

Answer

Circumflex artery

Answer

Right coronary artery

Answer

Posterior descending artery

Question 32

The electrical signal that triggers the heart to contract is called the:

Accepted Answer

Cardiac impulse

Answer

Action potential

Answer

Electrocardiogram

Answer

Myocardial infarction

Question 33

The instrument used to record the heart's electrical activity is called:

Accepted Answer

Electrocardiograph

Answer

Stethoscope

Answer

Blood pressure cuff

Answer

Pulse oximeter

Question 34

Which node initiates the electrical impulse that triggers the heart to contract?

Accepted Answer

SA node

Answer

AV node

Answer

Bundle of His

Answer

Purkinje fibers

Question 35

During which phase of the cardiac cycle do the ventricles fill with blood?

Accepted Answer

Diastole

Answer

Systole

Answer

Ischemia

Answer

Repolarization

Question 36

Which blood vessel supplies oxygenated blood to the heart muscle?

Accepted Answer

Coronary artery

Answer

Pulmonary artery

Answer

Aorta

Answer

Vena cava

Question 37

What is the normal resting heart rate range in adults?

Accepted Answer

60-100 beats per minute

Answer

40-50 beats per minute

Answer

20-30 beats per minute

Answer

120-140 beats per minute

Question 38

What does a prolonged QT interval on an ECG indicate?

Accepted Answer

Long QT syndrome

Answer

Bradycardia

Answer

Tachycardia

Answer

Short QT syndrome

Question 39

What is the term for slowed conduction in one of the bundle branches?

Accepted Answer

Bundle branch block

Answer

AV block

Answer

Tachycardia

Answer

Bradycardia

Question 40

Which chamber of the heart receives oxygenated blood from the lungs?

Accepted Answer

Left atrium

Answer

Right atrium

Answer

Left ventricle

Answer

Right ventricle

Question 41

Which component of the heart's electrical conduction system initiates the heartbeat?

Accepted Answer

Sinoatrial node

Answer

Atrioventricular node

Answer

Bundle of His

Answer

Purkinje fibers

Question 42

What is the term for the relaxation phase of the cardiac cycle?

Accepted Answer

Diastole

Answer

Systole

Answer

Ischemia

Answer

Infarction

Question 43

Which EKG abnormality is commonly associated with a heart attack?

Accepted Answer

ST-elevation

Answer

T-wave inversion

Answer

QRS complex widening

Answer

P-wave prolongation

Question 44

What is the primary function of the coronary arteries?

Accepted Answer

To supply oxygen and nutrients to the heart muscle

Answer

To carry blood away from the heart

Answer

To regulate heart rate

Answer

To prevent blood clots

Question 45

Which symptom is commonly associated with angina?

Accepted Answer

Chest pain

Answer

Shortness of breath

Answer

Fatigue

Answer

Palpitations