Human Body Systems

Heart MCQs with Answers

Welcome to the Heart MCQs with Answers. In this post, we have shared Heart Online Test for different competitive exams. Find practice Heart Practice Questions with answers in Biology Tests exams here. Each question offers a chance to enhance your knowledge regarding Heart.

The heart is a vital organ in the human body, responsible for pumping blood through the circulatory system to supply oxygen and nutrients to tissues and remove waste products like carbon dioxide. Located in the thoracic cavity between the lungs, the heart is a muscular organ about the size of a clenched fist and functions as the engine of the circulatory system.

The heart is divided into four chambers: the right atrium, right ventricle, left atrium, and left ventricle. These chambers work in a coordinated manner to ensure efficient blood flow. Blood low in oxygen returns from the body to the right atrium, passes into the right ventricle, and is then pumped to the lungs via the pulmonary artery for oxygenation. Oxygen-rich blood returns to the left atrium, flows into the left ventricle, and is pumped out to the rest of the body through the aorta.

The heart’s operation is regulated by an electrical conduction system that initiates and controls the heartbeat. The sinoatrial (SA) node, located in the right atrium, acts as the natural pacemaker, generating electrical impulses that cause the atria to contract and push blood into the ventricles. The atrioventricular (AV) node then relays these impulses to the ventricles, causing them to contract and pump blood to the lungs and the rest of the body.

The heart’s muscular walls, known as the myocardium, are specially adapted to endure continuous contraction and relaxation. The coronary arteries supply the myocardium with oxygenated blood, essential for its function.

Heart Online Quiz

By presenting 3 options to choose from, Heart Quiz which cover a wide range of topics and levels of difficulty, making them adaptable to various learning objectives and preferences. You will have to read all the given answers of Heart Questions and Answers and click over the correct answer.

  • Test Name: Heart MCQ Quiz Practice
  • Type: Quiz Test
  • Total Questions: 40
  • Total Marks: 40
  • Time: 40 minutes

Note: Answer of the questions will change randomly each time you start the test. Practice each quiz test at least 3 times if you want to secure High Marks. Once you are finished, click the View Results button. If any answer looks wrong to you in Quiz, simply click on question and comment below that question, so that we can update the answer in the quiz section.

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Heart MCQs

Heart 

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1 / 40

What is the function of the superior vena cava?

2 / 40

Which structure divides the left and right sides of the heart?

3 / 40

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

4 / 40

Which artery carries deoxygenated blood?

5 / 40

Which heart chamber receives deoxygenated blood from the body?

6 / 40

What is the name of the outer layer of the heart wall?

7 / 40

Which valve is located between the left ventricle and the aorta?

8 / 40

Which heart structure is responsible for coordinating the contraction of the ventricles?

9 / 40

What is the primary function of the left atrium?

10 / 40

What is the primary function of the right atrium?

11 / 40

What is the role of the AV node in the heart?

12 / 40

Which valve is located between the left atrium and left ventricle?

13 / 40

What is the largest artery in the body?

14 / 40

Which heart chamber pumps blood into the aorta?

15 / 40

How many chambers does the human heart have?

16 / 40

What is the function of the endocardium?

17 / 40

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

18 / 40

What is the term for the electrical activity that stimulates the heart to contract?

19 / 40

Which structure in the heart initiates the heartbeat?

20 / 40

Which layer of the heart wall is responsible for contraction?

21 / 40

What is the primary role of the mitral valve?

22 / 40

Which valve prevents backflow of blood into the right atrium?

23 / 40

Which chamber of the heart pumps deoxygenated blood to the lungs?

24 / 40

Which vein returns blood from the head and neck to the heart?

25 / 40

What is the main function of the heart?

26 / 40

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

27 / 40

What is the name of the heart's natural pacemaker?

28 / 40

Which chamber of the heart pumps oxygenated blood to the body?

29 / 40

Which chamber of the heart receives blood from the pulmonary veins?

30 / 40

Which chamber of the heart is the strongest and has the thickest walls?

31 / 40

What is the function of the aortic valve?

32 / 40

Which blood vessel returns deoxygenated blood from the lower body to the heart?

33 / 40

What is the function of the coronary arteries?

34 / 40

Which valve is located between the right ventricle and the pulmonary artery?

35 / 40

Which part of the heart generates electrical impulses to regulate heartbeats?

36 / 40

What is the function of the pericardium?

37 / 40

Which structure ensures unidirectional blood flow through the heart?

38 / 40

Which vessels supply oxygen-rich blood to the heart muscle?

39 / 40

What is the function of the right ventricle?

40 / 40

Which vein carries oxygenated blood?

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Heart Flashcards

What is the main function of the heart?

Pump blood

How many chambers does the human heart have?

Four

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

Left atrium

Which valve is located between the left atrium and left ventricle?

Mitral valve

What is the largest artery in the body?

Aorta

Which chamber of the heart pumps deoxygenated blood to the lungs?

Right ventricle

What is the function of the coronary arteries?

Supply blood to the heart muscle

Which valve prevents backflow of blood into the right atrium?

Tricuspid valve

What is the name of the heart's natural pacemaker?

SA node

Which structure divides the left and right sides of the heart?

Septum

Which chamber of the heart pumps oxygenated blood to the body?

Left ventricle

Which valve is located between the right ventricle and the pulmonary artery?

Pulmonary valve

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

Systole

Which heart chamber receives deoxygenated blood from the body?

Right atrium

What is the name of the outer layer of the heart wall?

Epicardium

Which artery carries deoxygenated blood?

Pulmonary artery

Which part of the heart generates electrical impulses to regulate heartbeats?

SA node

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

Diastole

Which chamber of the heart is the strongest and has the thickest walls?

Left ventricle

What is the function of the aortic valve?

Prevent backflow into the left ventricle

Which vein carries oxygenated blood?

Pulmonary vein

What is the role of the AV node in the heart?

Delay electrical impulse

Which structure ensures unidirectional blood flow through the heart?

Valves

What is the function of the pericardium?

Protect the heart

Which chamber of the heart receives blood from the pulmonary veins?

Left atrium

What is the function of the right ventricle?

Pump blood to the lungs

Which valve is located between the left ventricle and the aorta?

Aortic valve

Which heart structure is responsible for coordinating the contraction of the ventricles?

Bundle of His

What is the function of the superior vena cava?

Return blood to the right atrium

What is the primary function of the left atrium?

Receive oxygenated blood from the lungs

Which layer of the heart wall is responsible for contraction?

Myocardium

Which vessels supply oxygen-rich blood to the heart muscle?

Coronary arteries

What is the primary function of the right atrium?

Receive deoxygenated blood from the body

Which heart chamber pumps blood into the aorta?

Left ventricle

What is the primary role of the mitral valve?

Prevent backflow into the left atrium

Which blood vessel returns deoxygenated blood from the lower body to the heart?

Inferior vena cava

Which structure in the heart initiates the heartbeat?

SA node

What is the term for the electrical activity that stimulates the heart to contract?

Depolarization

Which vein returns blood from the head and neck to the heart?

Superior vena cava

What is the function of the endocardium?

Line the heart chambers

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