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5 Written questions

5 Matching questions

  1. Where is the myocardium found and what kind of tissue is it?
  2. interventricular septum
  3. coronary sinus
  4. Ascending aorta
  5. Anterior interventricular sulcus
  1. a
    Ascends short distance within the pericardium; Has aortic valve at its origin; origin: Left ventricle (aortic vestibule)
  2. b
    Groove on anterior surface; extends from coronary sulcus to inferior margin; marks position of interventricular septum;
  3. c collects blood draining from the myocardium
  4. d The endocardium underlies the much more voluminous myocardium, the muscular tissue responsible for the contraction of the heart.
    Cardiac muscle is a type of involuntary striated muscle found in the walls and histologic foundation of the heart, specifically the myocardium.
  5. e the internal partition that divides the heart longitudinally at the ventricles.

5 Multiple choice questions

  1. the double walled sac surrounding the heart.
  2. the right side of the heart. short, low-pressure circulation.
  3. connective tissue fibers that form a dense network to reinforce the myocardium internally and anchor the cardiac muscle fibers.
  4. deep to the fibrous pericardium: a thin, slippery, 2-layer serous membrane. its parietal layer lines the internal surface of the fibrous pericardium.
  5. comb

5 True/False questions

  1. superior vena cavareturns blood from body regions inferior to the diaphragm. (lack oxygen.

          

  2. What kind of tissue is endomysium, perimysium and epimysium and where is it located in the myocardium?-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.

          

  3. trabeculae carneaesupplies the left atrium and the posterior walls of the left ventricle.

          

  4. systemic circuit pumpthe right side of the heart. short, low-pressure circulation.

          

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

          

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