Heart

Question 1

Define heart.

Answer 1

A muscular organ that pumps blood throughout the body.

Question 2

What is the function of the heart?

Answer 2

To circulate blood, delivering oxygen and nutrients to tissues.

Question 3

True or false: The heart has four chambers.

Answer 3

TRUE

The four chambers are the left atrium, right atrium, left ventricle, and right ventricle.

Question 4

Fill in the blank: The atria are the ______ chambers of the heart.

Answer 4

upper

Question 5

What is the pericardium?

Answer 5

The protective sac surrounding the heart.

Question 6

Define myocardium.

Answer 6

The thick middle layer of heart muscle responsible for contraction.

Question 7

What does the left ventricle do?

Answer 7

Pumps oxygenated blood to the body.

Question 8

True or false: The right atrium receives oxygenated blood.

Answer 8

FALSE

The right atrium receives deoxygenated blood from the body.

Question 9

Fill in the blank: The valves of the heart prevent ______ of blood.

Answer 9

backflow

Question 10

What is the role of the aorta?

Answer 10

To carry oxygen-rich blood from the heart to the body.

Question 11

Define coronary arteries.

Answer 11

Blood vessels that supply blood to the heart muscle.

Question 12

What is cardiac output?

Answer 12

The volume of blood the heart pumps per minute.

Question 13

True or false: The heart rate is the number of heartbeats per minute.

Answer 13

TRUE

Question 14

Fill in the blank: The sinoatrial node is known as the ______ of the heart.

Answer 14

natural pacemaker

Question 15

What is the function of the valves?

Answer 15

To ensure one-way blood flow through the heart.

Question 16

Define heart murmur.

Answer 16

An abnormal sound during the heartbeat cycle.

Question 17

What does hypertension refer to?

Answer 17

High blood pressure affecting heart function.

Question 18

True or false: Arrhythmias are irregular heartbeats.

Answer 18

TRUE

Question 19

Fill in the blank: The pulmonary artery carries blood to the ______.

Answer 19

lungs

Question 20

What is atherosclerosis?

Answer 20

The buildup of plaque in arteries, restricting blood flow.

Question 21

Define cardiomyopathy.

Answer 21

A disease of the heart muscle affecting its size and shape.

Question 22

What is the function of the pulmonary veins?

Answer 22

To carry oxygenated blood from the lungs to the heart.

Question 23

True or false: The left atrium receives deoxygenated blood.

Answer 23

FALSE

The left atrium receives oxygenated blood from the lungs.

Question 24

Fill in the blank: Electrocardiogram (ECG) measures the ______ of the heart.

Answer 24

electrical activity

Question 25

What is **congestive heart failure**?

Answer 25

A condition where the heart cannot pump sufficient blood.

Question 26

Define **ventricular fibrillation**.

Answer 26

A life-threatening heart rhythm that results in uncoordinated contractions.

Question 27

What is the **function** of the right ventricle?

Answer 27

To pump deoxygenated blood to the lungs.

Question 28

True or false: **Stenosis** refers to the narrowing of heart valves.

Answer 28

TRUE

Question 29

Fill in the blank: **Cardiac arrest** is the sudden loss of ______ function.

Answer 29

heart

Question 30

What is the **function** of the septum?

Answer 30

To separate the left and right sides of the heart.

Question 31

Define **ischemia**.

Answer 31

Insufficient blood flow to the heart muscle.

Question 32

What is a **heart attack**?

Answer 32

Damage to the heart muscle due to blocked blood flow.

Question 33

True or false: **Coronary artery disease** is the leading cause of heart attacks.

Answer 33

TRUE

Question 34

Fill in the blank: **Angina** is chest pain due to ______ supply issues.

Answer 34

blood

Question 35

What does **cardiac rehabilitation** involve?

Answer 35

A program to improve health after heart-related issues.

Question 36

Define **heart valve replacement**.

Answer 36

Surgical procedure to replace damaged heart valves.

Question 37

What is the **function** of the aortic valve?

Answer 37

To prevent backflow of blood into the left ventricle.

Question 38

True or false: **Diastole** is the phase of heart relaxation.

Answer 38

TRUE

Question 39

Fill in the blank: The **right atrium** receives blood from the ______.

Answer 39

body

Question 40

What is **peripheral artery disease**?

Answer 40

Narrowing of arteries reducing blood flow to limbs.

Question 41

Define **heart sounds**.

Answer 41

The noises made by the heart during the heartbeat cycle.

Question 42

What is the **function** of the tricuspid valve?

Answer 42

To prevent backflow from the right ventricle to the right atrium.

Question 43

True or false: **Blood pressure** is measured in mmHg.

Answer 43

TRUE

Question 44

Fill in the blank: **Systole** is the phase of heart ______.

Answer 44

contraction

Question 45

What is **cardiac output** measured in?

Answer 45

Liters per minute.

Question 46

Define **heart failure**.

Answer 46

A condition where the heart cannot pump effectively.

Question 47

What is the **function** of the mitral valve?

Answer 47

To prevent backflow from the left ventricle to the left atrium.

Question 48

True or false: **Ventricular tachycardia** is a fast heart rhythm.

Answer 48

TRUE

Question 49

Fill in the blank: **Cardiac enzymes** are released during heart ______.

Answer 49

damage

Question 50

What is the **function** of the coronary sinus?

Answer 50

To collect deoxygenated blood from the heart muscle.

Question 51

Define **heart transplant**.

Answer 51

Surgical procedure to replace a failing heart with a donor heart.

Question 52

What is the **function** of the pulmonary valve?

Answer 52

To prevent backflow into the right ventricle.

Question 53

True or false: **Atrial fibrillation** increases stroke risk.

Answer 53

TRUE

Question 54

Fill in the blank: The **left ventricle** has the ______ wall of all heart chambers.

Answer 54

thickest