Respiration

Respiration
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This illustration shows the upper thoracic organs and the diaphragm during inspiration and expiration. Inspiration is shown on the left, i.e. the diaphragm is contracted and this developing under pressure causes air to flow into the lung Expiration is shown on the right: the diaphragm is relaxed, air can leave the lungs.

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 - Uploaded at 24.12.2010
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