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of 156 available terms
(2 exact duplicates found)

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5 Written questions

5 Matching questions

  1. Pacemaker
  2. End-systolic volume
  3. Stroke volume (SV)
  4. Transverse (T) tubules
  5. Right ventricle
  1. a Tubelike invagination of the sarcolemma that conducts action potentials toward the center of the cylindrical muscle fibers.
  2. b because cells of the SA node spontaneously generate action potentials at a greater frequency than other cardiac muscle cells, these cells are called ...... of the heart.
  3. c opens into the pulmonary trunk.
  4. d The volume is decreased to 50-60 mL.
  5. e is the volume of blood pumped during each heartbeat (cardiac cycle), and it is equal to end-diastolic volume minus end-systolic volume.

5 Multiple choice questions

  1. is a higher-pitched sound often described as "dubb".
  2. is a larger branch of the right coronary artery, and other branches supply blood to the lateral wall of the right ventricle.
  3. is an instrument, placed beneath the skin, equipped with an electrode that extends to the heart and provides an electrical stimulus at a set frequency.
  4. is an artery that exits the heart, carries blood from the left ventricle to the body
  5. results when a prolonged lack of blood flow to a part of the cardiac muscle leads to a lack of oxygen and ultimately cellular death.

5 True/False questions

  1. Coronary arteriesis an artery that exits the heart, carries blood from the right ventricle to the lungs.

          

  2. Pericardial fluidhelps reduce friction as the heart moves within the pericardial sac.

          

  3. EndocardiumThe thick middle layer of the heart, is composed of cardiac muscle cells and is responsible for the heart's ability to contract.

          

  4. Great Cardiac Veinthe major vein draining the tissue on the left side of the heart.

          

  5. Heart-lung machineis the number of times the heart beats (contracts) per minute.

          

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