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of 156 available terms
(2 exact duplicates found)

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5 Written questions

5 Matching questions

  1. Pericardium/ Pericardial sac
  2. Voltage-gated Na+ channels
  3. Artificial Pacemaker
  4. relative refractory period
  5. Endocarditis
  1. a 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.
  2. b membrane channels open, bringing about the depolarization phase of the action potential.
  3. c is a double-layered, closed sac that surrounds the heart. It consists of the fibrous pericardium and the serous pericardium.
  4. d is an inflammation of the serous pericardium.
  5. e The cell is sensitive to stimulation, but a greater stimulation than normal is required to cause an action potential. Portion of the action potential following the absolute refraction period during which another action potential can be produced with a greater-than-threshold stimulus strength.

5 Multiple choice questions

  1. is the total resistance against which blood must be pumped.
  2. or minute volume, is the amount of blood pumped by the heart per minute.
  3. helps reduce friction as the heart moves within the pericardial sac.
  4. Separates the 2 atria
  5. a tough, fibrous connective tissue outer layer.

5 True/False questions

  1. Aortic Semilunar Valveis located in the aorta.


  2. Atriathin- walled, form the superior and posterior parts of the heart.


  3. Foramen ovaleThe extent to which the ventricular walls are stretched.


  4. Transverse (T) tubulesare cone-shaped, muscular pillars within each ventricle. These muscles are attached to chordae tendineae.


  5. Epicardium(visceral Pericardium), is a thin serous membrane that constitutes the smooth, outer surface of the heart. Also called the serous pericardium.


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