Quiz Questions Regarding The Heart

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  • 1/9 Questions

    How many chambers are there in the heart?

    • Five
    • Eight
    • Four
    • Three
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About This Quiz

The heart is one of the busiest organs in the human body and it does not rest because that would signify the end of the person’s life. The heart is part of your body's circulatory system and it’s made up of the atria, ventricles, valves, and various arteries and veins. Take up this quiz regarding the heart and get to see how much you know about it.

Quiz Questions Regarding The Heart - Quiz

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  • 2. 

    Which is the deepest layer of the arteries?

    • Tunica externa

    • Tunica interna

    • Tunica media

    Correct Answer
    A. Tunica interna
    Explanation
    The tunica interna is the innermost layer of the arteries, also known as the intima. It is composed of a single layer of endothelial cells that line the inside of the artery. This layer is responsible for maintaining the smooth flow of blood and preventing clotting by releasing substances that inhibit platelet aggregation. It also plays a role in regulating blood pressure and controlling the exchange of nutrients and waste products between the blood and surrounding tissues.

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  • 3. 

    What heart action incorporates relaxation?

    • Systole

    • Diastole

    • Ectopic

    Correct Answer
    A. Diastole
    Explanation
    Diastole is the correct answer because it refers to the phase of the cardiac cycle when the heart muscle relaxes and fills with blood. During diastole, the chambers of the heart expand and the blood flows into them, allowing for the next contraction (systole) to occur. This relaxation phase is crucial for the heart to rest and refill with oxygenated blood before pumping it out to the rest of the body.

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  • 4. 

    Which carry blood away from the heart?

    • Vena cava

    • Pulliminary trunk

    • Arteries

    • Veins

    Correct Answer
    A. Arteries
    Explanation
    Arteries carry blood away from the heart. They have thick, muscular walls that allow them to withstand the high pressure of blood being pumped by the heart. As the heart contracts, it pushes oxygenated blood into the arteries, which then distribute the blood to various parts of the body. This oxygenated blood is essential for delivering nutrients and oxygen to the body's tissues and organs.

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  • 5. 

    What are the pumping chambers of the heart?

    • Right and left ventricles

    • Right and left atriums

    • Pulliminary trunk

    Correct Answer
    A. Right and left ventricles
    Explanation
    The pumping chambers of the heart are the right and left ventricles. The ventricles are responsible for pumping blood out of the heart and into the arteries. The right ventricle pumps deoxygenated blood to the lungs, while the left ventricle pumps oxygenated blood to the rest of the body. The atriums, on the other hand, receive blood returning to the heart. The pulmonary trunk is a blood vessel that carries blood from the right ventricle to the lungs.

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  • 6. 

    Which is a circulation system of the blood?

    • Pulmonary

    • Systemic

    • Coronary

    • All of the above

    Correct Answer
    A. All of the above
    Explanation
    The correct answer is "all of the above" because pulmonary, systemic, and coronary are all circulation systems of the blood. The pulmonary system is responsible for carrying blood between the heart and the lungs, the systemic system carries blood between the heart and the rest of the body, and the coronary system supplies blood to the heart muscle itself. Therefore, all three options are correct circulation systems of the blood.

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  • 7. 

    Which decreases the diameter of the artery?

    • Vasoconstriction

    • Vasodilation

    • Systole

    Correct Answer
    A. Vasoconstriction
    Explanation
    Vasoconstriction is the process of narrowing or constricting the diameter of an artery. This occurs when the smooth muscle in the walls of the artery contracts, causing the artery to become narrower. As a result, the blood flow through the artery is reduced. Vasoconstriction can be caused by various factors such as hormones, neurotransmitters, and certain medications. It is a physiological response that helps regulate blood pressure and redirect blood flow to specific areas of the body.

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  • 8. 

    The maximum pressure during ventricular contraction is

    • Distolic pressure

    • Systolic pressure

    • Ventricular pressure

    Correct Answer
    A. Systolic pressure
    Explanation
    The maximum pressure during ventricular contraction is known as systolic pressure. This is the highest pressure exerted on the walls of the arteries when the heart pumps blood into the circulation. The systolic pressure is measured as the top number in a blood pressure reading, and it represents the force exerted by the heart when it contracts. This pressure is important in assessing cardiovascular health and can indicate conditions such as hypertension or heart disease.

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  • 9. 

    Which layer of the veins is poorly developed?

    • Inner

    • Outer

    • Middle

    • None of the above

    Correct Answer
    A. Middle
    Explanation
    The middle layer of the veins is poorly developed. This is because veins are composed of three layers: the inner layer (tunica intima), the middle layer (tunica media), and the outer layer (tunica adventitia). The middle layer of veins is thinner and less muscular compared to arteries. This is because veins are responsible for carrying blood back to the heart, and they do not experience the same high pressure as arteries. Therefore, the middle layer of veins is less developed and less prominent than the other layers.

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Our quizzes are rigorously reviewed, monitored and continuously updated by our expert board to maintain accuracy, relevance, and timeliness.

  • Current Version
  • Dec 16, 2023
    Quiz Edited by
    ProProfs Editorial Team
  • Apr 19, 2008
    Quiz Created by
    Roxb2419
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