Cardiovascular System: Structure, Function, and Medical Coding

Question 1

Which of the following is not a major blood vessel directly connected to the heart?

Accepted Answer

Femoral artery

Answer

Aorta

Answer

Pulmonary artery

Answer

Vena cava

Question 2

Which of the following is a primary function of the heart?

Accepted Answer

Pumping blood throughout the body

Answer

Producing red blood cells

Answer

Regulating body temperature

Answer

Filtering waste products

Question 3

Atherosclerosis is a condition characterized by:

Accepted Answer

Narrowing of blood vessels due to plaque buildup

Answer

Chronically elevated blood pressure

Answer

Weakening of the heart muscle

Answer

Abnormal heart rhythms

Question 4

What is the outermost layer of the heart called?

Accepted Answer

Pericardium

Answer

Myocardium

Answer

Endocardium

Answer

Epicardium

Question 5

Which procedure involves inserting a stent into a narrowed blood vessel to improve blood flow?

Accepted Answer

Stent placement

Answer

Angioplasty

Answer

Atherectomy

Answer

Bypass surgery

Question 6

Which artery in the human body is the widest in diameter?

Accepted Answer

Aorta

Answer

Carotid artery

Answer

Femoral artery

Answer

Radial artery

Question 7

What is the medical term for the condition in which an artery becomes abnormally narrowed?

Accepted Answer

Stenosis

Answer

Embolism

Answer

Thrombosis

Answer

Aneurysm

Question 8

Which diagnostic test utilizes sound waves to create images of the heart and assess its function?

Accepted Answer

Echocardiogram

Answer

Electrocardiogram (ECG)

Answer

Cardiac catheterization

Answer

Stress test

Question 9

What is the term for a surgical procedure that involves replacing a damaged or diseased heart valve?

Accepted Answer

Valve replacement surgery

Answer

Coronary artery bypass surgery

Answer

Heart transplant

Answer

Angioplasty

Question 10

Which heart valve prevents the backflow of blood into the left atrium?

Accepted Answer

Mitral valve

Answer

Tricuspid valve

Answer

Pulmonary valve

Answer

Aortic valve

Question 11

What is the term for the electrical impulse that initiates a heartbeat?

Accepted Answer

Action potential

Answer

Electrocardiogram

Answer

Cardiac cycle

Answer

Stroke volume

Question 12

Which procedure is used to diagnose a heart attack?

Accepted Answer

Electrocardiogram

Answer

Echocardiogram

Answer

Cardiac catheterization

Answer

Magnetic resonance imaging

Question 13

What is the medical term for inflammation of the heart muscle?

Accepted Answer

Myocarditis

Answer

Pericarditis

Answer

Endocarditis

Answer

Valvulitis

Question 14

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

Accepted Answer

Artery

Answer

Vein

Answer

Capillary

Answer

Ventricle

Question 15

What medical term describes inflammation of a vein?

Accepted Answer

Phlebitis

Answer

Arteritis

Answer

Thrombosis

Answer

Emboli

Question 16

Which of these is the largest artery in the human body?

Accepted Answer

Aorta

Answer

Carotid

Answer

Pulmonary artery

Answer

Femoral artery

Question 17

What primary role does the sinoatrial (SA) node play in the heart?

Accepted Answer

Initiating heart contractions

Answer

Controlling heart rate

Answer

Conducting electrical impulses throughout the heart

Answer

Pumping blood through the heart

Question 18

Which layer of the heart wall is primarily responsible for contraction?

Accepted Answer

Myocardium

Answer

Epicardium

Answer

Endocardium

Answer

Pericardium

Question 19

Which term accurately describes a blood clot in an artery?

Accepted Answer

Arterial embolism

Answer

Venous thrombosis

Answer

Edema

Answer

Hematoma

Question 20

To visualize blood flow in blood vessels, which medical imaging technique is commonly used?

Accepted Answer

Angiography

Answer

X-ray

Answer

Magnetic resonance imaging (MRI)

Answer

Ultrasound

Question 21

What is the primary role of the pulmonary artery in the circulatory system?

Accepted Answer

Carrying deoxygenated blood from tissues to the heart

Answer

Transporting oxygenated blood to body tissues

Answer

Supplying blood to the brain

Answer

Delivering blood to the kidneys

Question 22

Which of the following is **not** a primary function of the cardiovascular system?

Accepted Answer

Facilitate digestion

Answer

Remove waste products

Answer

Transport nutrients and oxygen

Answer

Regulate body temperature

Question 23

What is the anatomical name of the muscular organ responsible for pumping blood throughout the body?

Accepted Answer

Heart

Answer

Lungs

Answer

Veins

Answer

Arteries

Question 24

Which type of blood vessel carries oxygenated blood away from the heart to the body's tissues and organs?

Accepted Answer

Arteries

Answer

Capillaries

Answer

Veins

Answer

Lymphatic vessels

Question 25

What is the name of the thin layer of cells that lines the interior of blood vessels?

Accepted Answer

Endothelium

Answer

Estroma

Answer

Epithelium

Answer

Myocardium

Question 26

What is the medical term for a condition characterized by abnormally high blood pressure?

Accepted Answer

Hypertension

Answer

Hypotension

Answer

Bradycardia

Answer

Tachycardia

Question 27

Which of the following is a well-established risk factor for cardiovascular disease?

Accepted Answer

Smoking

Answer

Stress management

Answer

Exercise

Answer

Healthy diet

Question 28

What is the physiological mechanism that coordinates the rhythmic contraction of the heart?

Accepted Answer

Action potentials

Answer

Enzymes

Answer

Hormones

Answer

Neurons

Question 29

What is the primary role of medical coding in the context of the cardiovascular system?

Accepted Answer

Assign unique identifiers to cardiovascular diseases and procedures for documentation and billing purposes.

Answer

Diagnose cardiovascular diseases

Answer

Treat cardiovascular diseases