Channel 4 Learning



SCIENCE
Science in Focus: The Virtual Body
 
Circulation, Respiration and Breathing
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Circulation, Respiration and Breathing

Aims

  • To show the main parts of the circulatory system and heart
  • To illustrate the relationship between arteries, veins and capillaries
  • To illustrate the principle of a double circulation
  • To illustrate gas exchange through diffusion in the lungs and the tissues
  • To show the main parts of the respiratory system
  • To explain the process of ventilation
  • To examine how the rate of ventilation is controlled and modified by the brain
  • To consider the factors contributing to oxygen debt
  • To explore the effects of cigarette smoking on the lungs.