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5 Written questions

5 Matching questions

  1. right auricle
  2. circumflex artery
  3. inferior vena cava
  4. also called the epicardium
  5. Right ventricle
  1. a
    1 of 4 chambers; rough, muscular walls; muscle wall thicker than either atrium and thinner than left ventricle; Responsible for pumping oxygen poor blood to lungs.
  2. b visceral layer of the serous pericardium
  3. c supplies the left atrium and the posterior walls of the left ventricle.
  4. d returns blood from body regions inferior to the diaphragm. (lack oxygen.
  5. e increase the atrial volume somewhat.

5 Multiple choice questions

  1. -The endocardium is the inner layer of the heart. It consists of epithelial tissue and connective tissue.
    -Lines the inner cavities of the heart, covers heart valves and is continuous with the inner lining of blood vessels. (the inner lining of vessels are endothelial cells)
    -Purkinje fibers are located in the endocardium. They participate in the contraction of the heart muscle.
  2. the double walled sac surrounding the heart.
  3. 4 veins: enter the left atrium; transport blood from the lungs back to the heart (best seen posteriorly)
  4. also known clinically as the left anterior descending artery: follows the anterior interventricular sulcus and supplies blood to the interventricular septum and anterior walls of both ventricles;
  5. underside

5 True/False questions

  1. peri =heart


  2. Right ventriclepumps blood into the pulmonary truck, which routes the blood to the lungs where gas exchange occurs.


  3. Right coronary artery
    Passes between pulmonary trunk and right auricle; lies in the coronary sulcus; distributes blood to the right atrium, right ventricle and left ventricle.


  4. superficial epicardiumoften infiltrated with fat (adipose), especially in older people. (visceral layer of the serous pericardium)


  5. myocardiummiddle layer of the heart wall; composed mainly of cardiac muscle and forms the bulk of the heart; circular and spiral arrangement of cardiac muscle.