cardiovascular system

Question 1

What is the primary function of the cardiovascular system?

Answer 1

To transport blood, nutrients, oxygen, carbon dioxide, and hormones throughout the body.

Question 2

True or False: The heart has four chambers.

Answer 2

True

Question 3

What are the names of the four chambers of the heart?

Answer 3

Right atrium, right ventricle, left atrium, left ventricle.

Question 4

Fill in the blank: The _______ carries oxygen-rich blood from the heart to the body.

Answer 4

Aorta

Question 5

What is the role of the pulmonary arteries?

Answer 5

To carry deoxygenated blood from the heart to the lungs.

Question 6

Which valve prevents backflow into the left atrium?

Answer 6

Mitral valve

Question 7

What is the normal resting heart rate range for adults?

Answer 7

60 to 100 beats per minute.

Question 8

True or False: The sinoatrial node is known as the heart’s natural pacemaker.

Answer 8

True

Question 9

What is the function of the coronary arteries?

Answer 9

To supply blood to the heart muscle.

Question 10

Multiple Choice: Which of the following is NOT a type of blood vessel? A) Arteries B) Veins C) Capillaries D) Lymphocytes

Answer 10

D) Lymphocytes

Question 11

What is the term for the contraction phase of the heart cycle?

Answer 11

Systole

Question 12

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

Answer 12

Diastole

Question 13

Fill in the blank: The _______ system regulates blood pressure and blood flow.

Answer 13

Renin-angiotensin-aldosterone

Question 14

What is atherosclerosis?

Answer 14

A condition characterized by the buildup of plaque in the arterial walls.

Question 15

True or False: Hypertension is defined as high blood pressure.

Answer 15

True

Question 16

What is the most common type of heart disease?

Answer 16

Coronary artery disease.

Question 17

What is myocardial infarction commonly known as?

Answer 17

Heart attack.

Question 18

Multiple Choice: Which condition is characterized by an irregular heartbeat? A) Bradycardia B) Tachycardia C) Arrhythmia D) Aneurysm

Answer 18

C) Arrhythmia

Question 19

What is heart failure?

Answer 19

A condition in which the heart cannot pump enough blood to meet the body’s needs.

Question 20

Fill in the blank: The _______ is the outer layer of the heart.

Answer 20

Epicardium

Question 21

What is the function of the valves in the heart?

Answer 21

To prevent backflow of blood.

Question 22

True or False: Veins carry blood away from the heart.

Answer 22

False

Question 23

What is the significance of the ECG (electrocardiogram)?

Answer 23

It measures the electrical activity of the heart.

Question 24

What does the term ‘ischemia’ refer to?

Answer 24

Insufficient blood flow to a tissue.

Question 25

Multiple Choice: Which of the following is a risk factor for cardiovascular disease? A) Smoking B) Regular exercise C) Healthy diet D) None of the above

Answer 25

A) Smoking

Question 26

What is the purpose of a stent?

Answer 26

To keep a blocked artery open.

Question 27

Fill in the blank: The _______ is a network of blood vessels that supply the heart muscle.

Answer 27

Coronary circulation

Question 28

What is the primary role of platelets in the cardiovascular system?

Answer 28

To aid in blood clotting.

Question 29

True or False: The right side of the heart receives oxygenated blood.

Answer 29

False

Question 30

What does 'cardiomyopathy' refer to?

Answer 30

A disease of the heart muscle that affects its size, shape, and ability to pump blood.

Question 31

Multiple Choice: Which part of the heart receives deoxygenated blood? A) Left atrium B) Right atrium C) Left ventricle D) Right ventricle

Answer 31

B) Right atrium

Question 32

What is the function of the aortic valve?

Answer 32

To prevent backflow of blood from the aorta into the left ventricle.

Question 33

Fill in the blank: The _______ is the largest artery in the body.

Answer 33

Aorta

Question 34

What is the primary role of red blood cells?

Answer 34

To transport oxygen from the lungs to the body's tissues.

Question 35

True or False: The left ventricle has thicker walls than the right ventricle.

Answer 35

True

Question 36

What is a common symptom of congestive heart failure?

Answer 36

Shortness of breath.

Question 37

Multiple Choice: Which condition is characterized by a sudden blockage of blood flow to the brain? A) Stroke B) Heart attack C) Aneurysm D) Arrhythmia

Answer 37

A) Stroke

Question 38

What is the significance of the pulmonary circulation?

Answer 38

It carries deoxygenated blood from the heart to the lungs for oxygenation.

Question 39

What is the primary function of the vena cavae?

Answer 39

To return deoxygenated blood to the heart.

Question 40

Fill in the blank: The _______ is the muscle layer of the heart.

Answer 40

Myocardium

Question 41

True or False: Blood pressure is measured in millimeters of mercury (mmHg).

Answer 41

True

Question 42

What is the role of the atrioventricular node?

Answer 42

To transmit electrical impulses from the atria to the ventricles.

Question 43

Multiple Choice: Which of the following is a sign of a heart attack? A) Chest pain B) Nausea C) Sweating D) All of the above

Answer 43

D) All of the above

Question 44

What is the effect of exercise on the cardiovascular system?

Answer 44

It strengthens the heart and improves circulation.

Question 45

What is hyperlipidemia?

Answer 45

An abnormally high level of lipids (fats) in the blood.