Anatomy Of Heart Quiz!

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| By JennaNicholson
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  • 1/24 Questions

    The main purpose of valves is to prevent backflow. 

    • True
    • False
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About This Quiz

Welcome to Anatomy of Heart Quiz! The heart is charged with the sole function of pumping blood throughout the body and, in so doing, ensuring nutrients can be transported with ease. It carries deoxygenated blood to the lungs, where it loads up with oxygen and unloads carbon dioxide. Test your knowledge of the heart anatomy by taking up the quiz below. All the best, and good luck!

Anatomy Of Heart Quiz! - Quiz

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  • 2. 

    What type of system is the heart?

    • Single pump

    • Double pump

    • Triple pump

    Correct Answer
    A. Double pump
    Explanation
    The heart is considered a double pump because it has two separate sides, the left and the right, which work together to pump blood throughout the body. The right side of the heart receives deoxygenated blood from the body and pumps it to the lungs to be oxygenated. The oxygenated blood then returns to the left side of the heart, which pumps it out to the rest of the body. This double pump system allows for efficient circulation of oxygenated blood to all parts of the body.

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  • 3. 

    Where does the heart sit?

    • Inside the mediastinum

    • Inside the pleural serosa

    • Inside the Lumbar region

    Correct Answer
    A. Inside the mediastinum
    Explanation
    The heart sits inside the mediastinum. The mediastinum is the central compartment of the thoracic cavity, located between the lungs. It contains various organs including the heart, thymus, esophagus, and major blood vessels. The heart is situated in the middle of the mediastinum, slightly tilted towards the left side of the chest. It is surrounded and protected by the pericardium, a double-layered sac.

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  • 4. 

    The SA node:

    • Is the pacemaker of the heart and causes atria to contract

    • Is located in the inter ventricular septum and causes ventricles to contract

    • Finishes contractions of the heart

    Correct Answer
    A. Is the pacemaker of the heart and causes atria to contract
    Explanation
    The SA node, or sinoatrial node, is responsible for initiating the electrical impulses that regulate the heart's rhythm. It acts as the natural pacemaker of the heart, generating electrical signals that cause the atria to contract. This contraction then propagates through the rest of the heart, causing the ventricles to contract as well. Therefore, the correct answer is that the SA node is the pacemaker of the heart and causes the atria to contract.

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  • 5. 

    What is the hearts serosal sac called? 

    • The parietal plurae/plural sac

    • The muscularis externa

    • The pericardium/pericardial sac

    Correct Answer
    A. The pericardium/pericardial sac
    Explanation
    The correct answer is the pericardium/pericardial sac. The pericardium is a double-layered sac that surrounds and protects the heart. It consists of two layers - the parietal pericardium and the visceral pericardium. The parietal pericardium is the outer layer of the sac, while the visceral pericardium is the inner layer that directly covers the heart. Together, these layers form the pericardial sac, which helps to prevent friction and damage to the heart as it beats.

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  • 6. 

    The tricuspid valve separates which two chambers?

    • The right atrium and right ventricle

    • The left atrium and left ventricle

    • The right atrium and left atrium

    Correct Answer
    A. The right atrium and right ventricle
    Explanation
    The tricuspid valve is located between the right atrium and the right ventricle. It prevents the backflow of blood from the ventricle to the atrium during the contraction of the heart. This valve has three leaflets or cusps that open and close to regulate the flow of blood between these two chambers.

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  • 7. 

    The apex of the heart is superior and to the right.

    • True

    • False

    Correct Answer
    A. False
    Explanation
    The apex of the heart is not superior and to the right. The apex of the heart is actually inferior and to the left.

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  • 8. 

    The bicuspid valve separates which two chambers?

    • The right atrium and right ventricle

    • The left atrium and left ventricle

    • The right atrium and left atrium

    Correct Answer
    A. The left atrium and left ventricle
    Explanation
    The bicuspid valve, also known as the mitral valve, is located between the left atrium and left ventricle of the heart. It prevents the backflow of blood from the left ventricle into the left atrium during ventricular contraction, ensuring that blood flows in one direction, from the atrium to the ventricle.

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  • 9. 

     Purkinje Fibers:

    • Are the pacemaker of the heart and causes atria to contract

    • Are located in the inter ventricular septum and causes ventricles to contract

    • Finnish contractions of the heart

    Correct Answer
    A. Finnish contractions of the heart
  • 10. 

    The AV node:

    • Is the pacemaker of the heart and causes atria to contract

    • Is located in the inter ventricular septum and causes ventricles to contract

    • Finishes contractions of the heart

    Correct Answer
    A. Is located in the inter ventricular septum and causes ventricles to contract
    Explanation
    The AV node is located in the interventricular septum, which is a wall that separates the two ventricles of the heart. It is responsible for conducting electrical signals from the atria to the ventricles, allowing for coordinated contractions. Therefore, it causes the ventricles to contract, not the atria.

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  • 11. 

    The fossa ovalis is a thin wall between which two chambers?

    • The right atrium and right ventricle

    • The left atrium and left ventricle

    • The right atrium and left atrium

    Correct Answer
    A. The right atrium and left atrium
    Explanation
    The fossa ovalis is a thin wall between the right atrium and left atrium. This structure is present in the heart and is a remnant of a fetal structure called the foramen ovale, which allows blood to bypass the lungs in utero. After birth, the foramen ovale closes and forms the fossa ovalis. This separation between the two atria helps to prevent the mixing of oxygenated and deoxygenated blood in the heart.

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  • 12. 

    What is anastomosis? 

    • When blood is continually back flowing into both right and left atria.

    • When arteries join each other to allow for continual blood flow even if one artery is blocked.

    • When additional pressure is required to return blood to the heart from the limbs.

    Correct Answer
    A. When arteries join each other to allow for continual blood flow even if one artery is blocked.
    Explanation
    Anastomosis refers to the joining of two arteries to allow for continuous blood flow, even if one artery becomes blocked. This is an important mechanism in the circulatory system that helps to ensure adequate blood supply to tissues and organs, even in the presence of a blockage. By connecting the arteries, blood can bypass the blocked area and reach its intended destination, preventing tissue damage and maintaining normal function.

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  • 13. 

    What is the opening for the superior and inferior vena cava called? 

    • Coronary sinus

    • Tricuspid valve

    • Bicuspid valve

    Correct Answer
    A. Coronary sinus
    Explanation
    The opening for the superior and inferior vena cava is called the coronary sinus.

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  • 14. 

    The Bicuspid valve is in the 5'th intercostal space left and the Tricuspid valve is in the 5th intercostal space right.

    • True

    • False

    Correct Answer
    A. True
    Explanation
    The statement is true because the Bicuspid valve, also known as the Mitral valve, is located in the 5th intercostal space on the left side of the chest. This valve separates the left atrium from the left ventricle. On the other hand, the Tricuspid valve is located in the 5th intercostal space on the right side of the chest. This valve separates the right atrium from the right ventricle.

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  • 15. 

    What function do the papillary muscles and chordae tendineae muscles fulfill?

    • Prevent the backward flapping of valves

    • Expand the ventricles surface area to increase blood consumption

    • Help squeeze blood from atria to ventricles

    Correct Answer
    A. Prevent the backward flapping of valves
    Explanation
    The papillary muscles and chordae tendineae muscles prevent the backward flapping of valves in the heart. These muscles are responsible for maintaining the proper closure of the atrioventricular valves (mitral and tricuspid valves) during ventricular contraction. They work together to anchor the valves and prevent them from being pushed back into the atria when the ventricles contract. This ensures that blood flows in the correct direction, from the atria to the ventricles, and prevents any regurgitation or backward flow of blood.

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  • 16. 

    Where does oxygenated blood come from in fetal circulation?

    • Lungs

    • Ambilical veins

    • Fossa ovalis

    Correct Answer
    A. Ambilical veins
    Explanation
    In fetal circulation, oxygenated blood comes from the umbilical veins. The umbilical veins carry oxygen-rich blood from the placenta to the fetus. This blood bypasses the lungs because the fetus does not use its own lungs for respiration. Instead, the oxygenated blood is directed towards the fetal heart through the umbilical veins. From there, it is distributed to the rest of the fetal body, providing oxygen and nutrients for growth and development. The umbilical veins play a crucial role in ensuring the fetus receives the necessary oxygen and nutrients for survival during pregnancy.

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  • 17. 

    What do the pectinate mucsles do?

    • They lower pressure in the atria allowing blood to flow in

    • They squeeze blood from the atrium to the ventricle

    • They push blood through the fossa ovalus and from the right atrium into the left atrium

    Correct Answer
    A. They squeeze blood from the atrium to the ventricle
    Explanation
    The pectinate muscles are responsible for squeezing blood from the atrium to the ventricle. These muscles contract during the cardiac cycle, helping to push the blood from the atrium into the ventricle. This action ensures that the blood flows in the correct direction, preventing any backflow or regurgitation.

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  • 18. 

    Which of the following is the correct order of serosal coverings of the heart from superficial to deep?

    • Visceral pericardium, parietal pericardium, fibrous pericardium, myocardium, endocardium

    • Parietal pericardium, visceral pericardium, fibrous pericardium, myocardium, endocardium

    • Fibrous pericardium, parietal pericardium, visceral pericardium, myocardium, endocardium

    Correct Answer
    A. Fibrous pericardium, parietal pericardium, visceral pericardium, myocardium, endocardium
    Explanation
    The correct order of serosal coverings of the heart from superficial to deep is fibrous pericardium, parietal pericardium, visceral pericardium, myocardium, endocardium. The fibrous pericardium is the outermost layer, followed by the parietal pericardium which lines the fibrous pericardium. The visceral pericardium is the innermost layer and is directly attached to the surface of the heart. The myocardium is the middle layer and is composed of cardiac muscle tissue. The endocardium is the innermost layer and lines the chambers of the heart.

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  • 19. 

    The semilunar vavles closing is the "lub" of the heart while the papillary muscles contraction is the "dub." 

    • True

    • False

    Correct Answer
    A. False
    Explanation
    The explanation for the correct answer, which is False, is that the statement incorrectly identifies the "lub" and "dub" sounds of the heart. In reality, the "lub" sound is produced by the closure of the atrioventricular valves (mitral and tricuspid valves), while the "dub" sound is caused by the closure of the semilunar valves (aortic and pulmonary valves). The papillary muscles, on the other hand, are responsible for preventing the atrioventricular valves from prolapsing into the atria during ventricular contraction, but they do not produce any sound.

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  • 20. 

    Atrioventricular valves (bicuspid and tricuspid) open actively. 

    • True

    • False

    Correct Answer
    A. False
    Explanation
    The statement that atrioventricular valves (bicuspid and tricuspid) open actively is false. In reality, atrioventricular valves open passively due to the pressure difference between the atria and the ventricles. When the ventricles relax during diastole, the pressure in the ventricles decreases, causing the atrioventricular valves to open and allow blood to flow from the atria into the ventricles.

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  • 21. 

    In fetal circulation, blood flows from the right atrium to the left atrium via:

    • Fossa Ovalis

    • Pulmonary Trunk

    • Foramen Ovale

    Correct Answer
    A. Foramen Ovale
    Explanation
    During fetal circulation, the foramen ovale allows blood to flow from the right atrium to the left atrium. This is important because the lungs are not yet functioning in the fetus, so oxygenated blood from the placenta needs to bypass the lungs and go directly to the left side of the heart to be pumped out to the body. The foramen ovale is a small opening in the septum between the two atria, which allows the blood to pass through and bypass the pulmonary circulation. Once the baby is born and takes its first breath, the foramen ovale usually closes, redirecting blood flow to the lungs.

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  • 22. 

    A heart murmur is

    • De oxygenated blood reacting with oxygenated blood

    • Back flow of blood into the atria

    • Irregular contractions of both right and left atria

    Correct Answer
    A. Back flow of blood into the atria
    Explanation
    A heart murmur is the abnormal sound heard during a heartbeat, which is caused by the backflow of blood into the atria. This backflow can occur due to a variety of reasons, such as a leaky heart valve or a hole in the heart. The backflow disrupts the normal blood flow pattern and creates a turbulent flow, resulting in the characteristic murmur sound.

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  • 23. 

    What does the Heart's double pump system allow for?

    • For each half of the heart to independently pump blood through both halves of the body.

    • To keep blood at a high pressure

    • To circulate oxygenated and oxygenated blood simultaneously.

    Correct Answer
    A. To keep blood at a high pressure
    Explanation
    The heart's double pump system allows for keeping blood at a high pressure. This is essential for efficient circulation throughout the body, as the high pressure helps to push the blood through the arteries and capillaries, ensuring that oxygen and nutrients are delivered to all tissues and organs. Additionally, the high pressure allows for the removal of waste products and carbon dioxide from the body. Without the heart's double pump system maintaining blood pressure, the circulation of blood would be compromised, leading to inadequate oxygenation and nutrient supply to the body's cells.

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  • 24. 

    Describe the pathway of blood from entering the heart to being administered to the body. 

Quiz Review Timeline (Updated): May 20, 2025 +

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

  • Current Version
  • May 20, 2025
    Quiz Edited by
    ProProfs Editorial Team
  • Mar 03, 2011
    Quiz Created by
    JennaNicholson
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