CVS part 1
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Questions and Answers

Which of the following is correct regarding heart surfaces ?

  • Anterior= base
  • Inferior= apex
  • Posterior= base (correct)
  • Medial= diaphragmatic
  • Where does the superior vena cava (SVC) drain?

  • Into the left ventricle
  • Into the right atrium (correct)
  • Into the right ventricle
  • Into the left atrium
  • At what vertebral level does the inferior vena cava (IVC) pass through the central tendon of the diaphragm?

  • L3
  • T8 (correct)
  • T5
  • T12
  • How many pulmonary veins transport oxygenated blood from the lungs to the left atrium?

    <p>4</p> Signup and view all the answers

    What is the purpose of the lack of valves in the superior vena cava (SVC)?

    <p>To facilitate the flow of blood in the direction of gravity</p> Signup and view all the answers

    Where does the left pulmonary artery go?

    <p>To the left lung</p> Signup and view all the answers

    What is the primary function of the inferior vena cava (IVC)?

    <p>To transport venous blood from the abdomen, pelvis and lower limbs</p> Signup and view all the answers

    What is the function of the ascending aorta?

    <p>To transport oxygenated blood from the left ventricle to the body</p> Signup and view all the answers

    Which of the following statements about the descending aorta is correct?

    <p>It begins to the left of the vertebral bodies and moves anteriorly as it descends</p> Signup and view all the answers

    Which of the following structures is contained within the pericardial sac?

    <p>Ascending aorta</p> Signup and view all the answers

    Which of the following is the correct order of the branches arising from the arch of the aorta?

    <p>Brachiocephalic trunk, left common carotid artery, left subclavian artery</p> Signup and view all the answers

    What is the primary difference between arteries and veins?

    <p>Arteries have thicker walls than veins.</p> Signup and view all the answers

    Which layer of the arterial wall is the most prominent in elastic arteries?

    <p>Tunica media</p> Signup and view all the answers

    What is the main function of elastic arteries?

    <p>Transport blood from the heart to arterioles.</p> Signup and view all the answers

    Which of the following statements about the tunica adventitia is correct?

    <p>It is loose connective tissue that blends with surrounding tissues</p> Signup and view all the answers

    What is the primary function of pericytes in capillaries?

    <p>To control systemic blood pressure</p> Signup and view all the answers

    Which region of the heart tube is responsible for the venous inflow into the heart?

    <p>Sinus venosus</p> Signup and view all the answers

    What process results in the formation of the atrioventricular groove in the developing heart?

    <p>Growth and folding of the bulbus cordis and primitive ventricle</p> Signup and view all the answers

    Which of the following structures is responsible for partitioning the atrium into left and right chambers during heart development?

    <p>Endocardial cushions</p> Signup and view all the answers

    Which of the following statements about the partitioning of the bulbus cordis and truncus arteriosus is correct?

    <p>It results in the formation of the aorta and pulmonary artery</p> Signup and view all the answers

    What does the Right Marginal Branch of the Right Coronary Artery supply?

    <p>Left ventricle (diaphragmatic part only)</p> Signup and view all the answers

    Which of the following veins is responsible for draining the majority of the venous blood from the heart?

    <p>Coronary sinus</p> Signup and view all the answers

    Which of the following branches of the left coronary artery gives rise to the left marginal branch?

    <p>Circumflex branch</p> Signup and view all the answers

    Which of the following veins is associated with the posterior interventricular artery?

    <p>Middle cardiac vein</p> Signup and view all the answers

    Which type of cells line the endocardium?

    <p>Simple squamous</p> Signup and view all the answers

    What is the earliest significant lesion in the formation of atherosclerosis?

    <p>Fatty streak</p> Signup and view all the answers

    What is the main cell type found in fatty streaks in the arterial wall?

    <p>Foam cells</p> Signup and view all the answers

    Which of the following is not a type of muscle in the ventricles?

    <p>Oblique</p> Signup and view all the answers

    Which of the following breaks down fibrin?

    <p>Plasmin</p> Signup and view all the answers

    Which lead's position does the following describe? 5th intercostal space at the midclavicular line.

    <p>V4</p> Signup and view all the answers

    What does the PR segment represent?

    <p>Depolarisation of the AVN</p> Signup and view all the answers

    What does the TP segment represent?

    <p>Diastasis</p> Signup and view all the answers

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