NAME: ________________________

Chapter 12 - Heart Test

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5 Written Questions

5 Multiple Choice Questions

  1. relaxation phase of the cardiac cycle
  2. Antrioventricular Valves ( AK) separate the atria and ventricles
  3. contraction phase of the cardiac cycle ( squeeezing blood out )
  4. From the AV Node, the impules travel along the artioventicular bundle, aka bundle of his - this then stimulates the Purkinje fibers - this cause the ventricles to contract together
  5. Outer Most Layer - Epicardium, Middle Layer - Myocardium, muscle layer, thickest layer - Inner Layer Endocardium -smooth and seamless

5 True/False Questions

  1. Componets of Cardiac Conduction SystemAKA Pacemaker, located posterior wall of right atrium, rhythmically initiates impulses causing the atria to contract at the same time


  2. Structurecontraction phase of the cardiac cycle ( squeeezing blood out )


  3. Sinoatrial Node / SA Node -Second part of the conduction system, located at the floor of the right atrium, causes a delay to allow the atria to finish emptying


  4. Left AVtricuspid valve


  5. Atrioventricular NodeHeart if covered by a protective sac called the pericardium - filled with serous fluid


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