14 An electrical system transmits signals throughout your heart to control its

14 an electrical system transmits signals throughout

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14. An electrical system transmits signals throughout your heart to control its what? Pumping.
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15. The electrical signal starts at what node? Which is located where? And is known as what? Starts at the SA node located in the upper portion of the right atrium. The SA node is known as the natural pacemaker of the heart. 16. The electrical signal passes down to where? Via what node? Which controls the signals so what happens? The electrical signal passes down to the lower chambers of the heart via the AV node which controls the signal telling the Atria to contract before the ventricle. 17. Electrical pathways throughout the ventricles ensure that the ventricles pump (i) at the same time or (ii) at different times? At the same time. 18. Ventricles pump blood through two systems – the pulmonary circulation, and – the systemic circulation. Put these terms in the table: The Pulmonary Circulation is blood flow from – heart – to lungs – to heart The Systemic circulation is blood flow from – heart – to body – to heart
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  • Fall '20
  • right ventricle, right atrium, tricuspid valve, Heart Lab, pump blood

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