The portion of the intrinsic conduction system located in the interventricular

The portion of the intrinsic conduction system

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3. The portion of the intrinsic conduction system located in the interventricular septum is the: a. SA nodeb. Purkinje fibersc. bundle of His and its branchesd. AV nodee. interatrial pathway Sorry. The correct response is c. The SA node is located in the bundle of His and its branches. 4. An electrocardiogram is a graphic illustration of the: Sorry. The correct response is a. An electrocardiogram is a graphic illustration of the cardiac conduction system. 5. A heartbeat, or cardiac cycle, is one sequence of contraction and relaxation of the heart chambers. The sequence occurs simultaneously in both sides of the heart. The contraction phase is called, and the relaxation phase is called.The contraction phase of the cardiac cycle is called "systole" and the relaxation phase is called "diastole." 6. Which two great vessels bring deoxygenated blood back to the heart?
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Correct! The answer is c. The superior and inferior venae cavae bring deoxygenated blood back to the heart! 7. Match the following heart structure with its function. Atrioventricular valves: Correct! The atrioventricular valves prevent backflow of blood into the atria. 8. Match the following heart structure with its function. Pulmonary trunk: a. prevents backflow of blood into the ventriclesb. separates the right and left atriac. brings deoxygenated blood to the lungsd. prevents backflow of blood into the atria Sorry. The pulmonary trunk brings deoxygenated blood to the lungs. 9. Match the following heart structure with its function. Semilunar valves: Correct! The semilunar valves prevent backflow of blood into the ventricles. 10. Match the following heart structure with its function. Interatrial septum: Correct! The Interatrial septum separates the right and left atria.
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  • Spring '13
  • left ventricle, left atrium, b. atria, a. atria, c. Atria

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