THE HEART AS A PUMP

The Heart as a Pump and Function of the Heart Valves.The human heart is composed of two pumps: the right heart, which receives blood from the peripheral tis­sues and pumps it through the lungs, and the left heart, which receives oxygenated blood from the lungs and pumps it back to the peripheral tissues.Each pump is composed of an atrium and a ventricle. The atria func­tion as conduits and primer pumps that fill the ventri­cles with blood. The ventricles contract and impart high pressure to the blood, which is responsible for propel­ling it through the circulation. The heart has a special conduction system that maintains its own rhythmicity and transmits action potentials throughout the heart muscles.

At the end of the lesson students will be able to learn:

  • The working of heart as pump and function of heart valves.
  • The distinguished features of Cardiac Muscle compared with skeletal Muscle.
  • Cardiac Action Potential.
  • Cardiac Cycle.
  • Work output of Heart.
  • Regulation of Heart Pumping.

 

 

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cardiac-1.pptx (1.18 MB )