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Ventilation - Anatomy & Physiology (view source)
Revision as of 13:23, 10 September 2010
, 13:23, 10 September 2010Text replace - "Pleural cavity and membranes - Anatomy & Physiology#" to "Pleural Cavity and Membranes - Anatomy & Physiology#"
Ventilation is the movement of air into and out of the [[Lungs - Anatomy & Physiology|lungs]]. Air moves from high pressure to low pressure with the rate of flow being proportional to the pressure difference. As environmental pressure is generally constant, the [[Cardiorespiratory System Overview - Anatomy & Physiology|respiratory system]] must change it's internal pressure to maintain air flow.
Ventilation is the movement of air into and out of the [[Lungs - Anatomy & Physiology|lungs]]. Air moves from high pressure to low pressure with the rate of flow being proportional to the pressure difference. As environmental pressure is generally constant, the [[Cardiorespiratory System Overview - Anatomy & Physiology|respiratory system]] must change it's internal pressure to maintain air flow.
The lungs are not fixed to the thoracic wall but follow the changing volume of the thoracic cavity thanks to the [[Pleural cavity and membranes - Anatomy & Physiology#Pleural Membranes|Pleura]].
The lungs are not fixed to the thoracic wall but follow the changing volume of the thoracic cavity thanks to the [[Pleural Cavity and Membranes - Anatomy & Physiology#Pleural Membranes|Pleura]].
==Inspiration==
==Inspiration==