Inhalation & exhalation
- Created by: Anya 17.11.2004
- Created on: 29-04-18 16:26
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BREATHING/VENTILATION: the process of moving air in (inhalation) and out (exhalation) of the lungs.- ventilation is made possible by action of muscles.: diaphragm & intercoastal muscles
INHALATION
diaphragm - contracts/flattens
intercoastal muscles - contract
rib cage - moves upward & outward
volume of chest cavity - increases
Pressure of chest cavity - decreases
air movement - forced inside lungs
EXHALATION
diaphragm - relaxes/becomes dome shaped
intercoastal…
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