Heart Anatomy Labeling Quiz
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Questions and Answers

What is the function of the left anterior descending artery?

  • Supplies blood to the anterior part of the heart (correct)
  • Drains blood from the heart
  • Connects the aorta to the lungs
  • None of the above

    • What does the aortic arch do?

  • Carries blood to the lungs
  • Supplies oxygenated blood to the body (correct)
  • Drains blood from the body
  • None of the above

    • What does the aortic semilunar valve do?

  • Prevents backflow into the left ventricle (correct)
  • Allows blood flow from the aorta
  • Aids in pulmonary circulation
  • None of the above

    • What is located at the apex of the heart?

    <p>The tip of the heart.</p> Signup and view all the answers

    What is the function of the ascending aorta?

    <p>Carries blood from the heart to the body.</p> Signup and view all the answers

    What is the purpose of the atrioventricular node (AV node)?

    <p>Conducts electrical impulses</p> Signup and view all the answers

    What does the base of the heart refer to?

    <p>The top part of the heart.</p> Signup and view all the answers

    What is the function of the brachiocephalic artery?

    <p>Supplies blood to the right arm and the head.</p> Signup and view all the answers

    What do chordae tendineae do?

    <p>Connect heart valves to papillary muscles.</p> Signup and view all the answers

    What does the circumflex artery supply?

    <p>Supplies blood to the left atrium and posterior wall of the left ventricle.</p> Signup and view all the answers

    What is the descending aorta?

    <p>The portion of the aorta that descends through the thorax and abdomen.</p> Signup and view all the answers

    What is the function of the endocardium?

    <p>Lining of the heart chambers.</p> Signup and view all the answers

    What is the visceral pericardium?

    <p>Inner layer of the pericardium</p> Signup and view all the answers

    What is the fossa ovalis?

    <p>A depression in the interatrial septum.</p> Signup and view all the answers

    What does the great cardiac vein do?

    <p>Drains blood from the heart muscle.</p> Signup and view all the answers

    What is the inferior vena cava?

    <p>A large vein that carries deoxygenated blood from the lower body to the heart.</p> Signup and view all the answers

    What is the interventricular septum?

    <p>The wall separating the left and right ventricles.</p> Signup and view all the answers

    What are left atrioventricular (bicuspid) valves?

    <p>Valves that regulate blood flow between the left atrium and ventricle.</p> Signup and view all the answers

    What is the left atrium?

    <p>Chamber of the heart that receives oxygenated blood.</p> Signup and view all the answers

    What is the left auricle?

    <p>An extension of the left atrium.</p> Signup and view all the answers

    What are left bundle branches?

    <p>Electrical pathways that conduct impulses to the left ventricle.</p> Signup and view all the answers

    What is the left common carotid?

    <p>An artery that supplies blood to the left side of the head and neck.</p> Signup and view all the answers

    What is the left coronary artery?

    <p>An artery supplying blood to the left side of the heart.</p> Signup and view all the answers

    What does the left pulmonary artery do?

    <p>Carries deoxygenated blood from the heart to the left lung.</p> Signup and view all the answers

    What are left pulmonary veins?

    <p>Veins that carry oxygenated blood from the left lung to the heart.</p> Signup and view all the answers

    What does the left subclavian artery supply?

    <p>Blood to the left arm and part of the brain.</p> Signup and view all the answers

    What is the left ventricle?

    <p>Chamber of the heart that pumps oxygenated blood to the body.</p> Signup and view all the answers

    What is the ligamentum arteriosum?

    <p>A remnant of the ductus arteriosus.</p> Signup and view all the answers

    What is the myocardium?

    <p>The muscular middle layer of the heart.</p> Signup and view all the answers

    What do papillary muscles do?

    <p>Anchor the chordae tendineae to the heart wall.</p> Signup and view all the answers

    What does the posterior descending artery do?

    <p>Supplies blood to the posterior wall of the heart.</p> Signup and view all the answers

    What is the pulmonary semilunar valve?

    <p>Valves that prevent backflow into the right ventricle.</p> Signup and view all the answers

    What is the pulmonary trunk?

    <p>A large vessel carrying deoxygenated blood to the lungs.</p> Signup and view all the answers

    What are Purkinje fibers?

    <p>Fibers that conduct impulses in the heart muscle.</p> Signup and view all the answers

    What are right atrioventricular (tricuspid) valves?

    <p>Valves that regulate blood flow between the right atrium and ventricle.</p> Signup and view all the answers

    What is the right atrium?

    <p>Chamber of the heart that receives deoxygenated blood.</p> Signup and view all the answers

    What is the right auricle?

    <p>An extension of the right atrium.</p> Signup and view all the answers

    What are right bundle branches?

    <p>Electrical pathways that conduct impulses to the right ventricle.</p> Signup and view all the answers

    What is the right common carotid?

    <p>An artery that supplies blood to the right side of the head and neck.</p> Signup and view all the answers

    What does the right coronary artery do?

    <p>Supplies blood to the right side of the heart.</p> Signup and view all the answers

    What is the marginal artery?

    <p>A vessel that supplies blood to the colon.</p> Signup and view all the answers

    What is the right subclavian artery?

    <p>An artery that supplies blood to the right arm and parts of the brain.</p> Signup and view all the answers

    What is the right ventricle?

    <p>Chamber of the heart that pumps deoxygenated blood to the lungs.</p> Signup and view all the answers

    What is the sinoatrial node (SA node)?

    <p>The heart's natural pacemaker.</p> Signup and view all the answers

    What is the superior vena cava?

    <p>A large vein that carries deoxygenated blood from the upper body to the heart.</p> Signup and view all the answers

    What do the R & L brachiocephalic veins do?

    <p>Drain blood from the upper limbs and head into the superior vena cava.</p> Signup and view all the answers

    What is the esophagus?

    <p>A muscular tube that connects the throat to the stomach.</p> Signup and view all the answers

    What is the trachea?

    <p>A tube that carries air to the lungs.</p> Signup and view all the answers

    What is the coronary sinus?

    <p>A large vein that drains deoxygenated blood from the heart muscle.</p> Signup and view all the answers

    What does the middle cardiac vein do?

    <p>Drains blood from the heart's posterior areas.</p> Signup and view all the answers

    Study Notes

    Heart Structure and Function

    • The left anterior descending artery (anterior interventricular) supplies blood to the anterior wall of the left ventricle.
    • The aortic arch is the curved segment of the aorta from which the major arteries branch.
    • The aortic semilunar valve prevents backflow from the aorta into the left ventricle during diastole.
    • The apex is the tip of the heart, located at the bottom of the left ventricle.
    • The ascending aorta carries oxygenated blood away from the heart to the body.
    • The atrioventricular node (AV node) is responsible for relaying electrical impulses from the atria to the ventricles.
    • The base of the heart is the upper part where the great vessels emerge.
    • The brachiocephalic artery is the first branch of the aortic arch, supplying blood to the right arm and head.
    • Chordae tendineae are fibrous strings that connect the heart valves to the papillary muscles, ensuring valve closure.
    • The circumflex artery supplies blood to the left atrium and the lateral and posterior walls of the left ventricle.
    • The descending aorta is the continuation of the aorta as it travels downward through the thoracic and abdominal cavities.
    • The endocardium is the inner lining of the heart chambers and valves.
    • The visceral pericardium is the inner layer of the pericardium, covering the heart surface.
    • The fossa ovalis is a remnant of the fetal foramen ovale, allowing blood to bypass the non-functioning lungs in the fetus.
    • The great cardiac vein drains blood from the heart muscle and returns it to the right atrium via the coronary sinus.
    • The inferior vena cava carries deoxygenated blood from the lower body to the right atrium.
    • The interventricular septum separates the left and right ventricles, preventing mixing of oxygenated and deoxygenated blood.
    • The left atrioventricular (bicuspid) valve prevents backflow from the left ventricle to the left atrium.
    • The left atrium receives oxygenated blood from the lungs via the pulmonary veins.
    • The left auricle is a small pouch attached to the left atrium, increasing its volume.
    • The left bundle branches conduct electrical impulses to the left ventricle.
    • The left common carotid artery supplies blood to the left side of the head and neck.
    • The left coronary artery branches into the left anterior descending and circumflex arteries.
    • The left pulmonary artery carries deoxygenated blood from the right ventricle to the left lung.
    • The left pulmonary veins return oxygenated blood from the left lung to the left atrium.
    • The left subclavian artery supplies blood to the left arm.
    • The left ventricle pumps oxygenated blood to the body through the aorta.
    • The ligamentum arteriosum is the remnant of the ductus arteriosus, connecting the pulmonary trunk and aorta in the fetus.
    • The myocardium is the thick middle muscle layer of the heart, responsible for contraction.
    • Papillary muscles anchor the chordae tendineae and assist in valve function.
    • The posterior descending artery (interventricular) supplies the inferior wall of the heart.
    • The pulmonary semilunar valve prevents backflow into the right ventricle during diastole.
    • The pulmonary trunk carries deoxygenated blood from the right ventricle to the lungs.
    • Purkinje fibers conduct impulses throughout the ventricles, coordinating contraction.
    • The right atrioventricular (tricuspid) valve prevents backflow into the right atrium.
    • The right atrium receives deoxygenated blood from the body through the superior and inferior vena cavae.
    • The right auricle increases the volume of the right atrium.
    • The right bundle branches conduct electrical impulses to the right ventricle.
    • The right common carotid artery supplies blood to the right side of the head and neck.
    • The right coronary artery supplies blood to the right atrium and right ventricle.
    • The marginal artery supplies blood to the colon, branching from the mesenteric arteries.
    • The right subclavian artery supplies blood to the right arm.
    • The right ventricle pumps deoxygenated blood to the lungs through the pulmonary trunk.
    • The sinoatrial node (SA node) is the heart's natural pacemaker, initiating electrical impulses for heartbeats.
    • The superior vena cava returns deoxygenated blood from the upper body to the right atrium.
    • The right and left brachiocephalic veins drain blood from the head and arms into the superior vena cava.
    • The esophagus is a muscular tube connecting the throat and stomach, located posterior to the heart.
    • The trachea is the windpipe, conducting air to and from the lungs, situated anterior to the esophagus.
    • The coronary sinus collects deoxygenated blood from the heart muscle and drains into the right atrium.
    • The middle cardiac vein drains blood from the posterior part of the heart directly into the coronary sinus.

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    Description

    Test your knowledge of heart anatomy with this labeling quiz. Identify key structures like arteries, nodes, and other parts of the heart. Perfect for students studying biology or medicine.

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