The mechanical process primarily based on changes in pressure inside the chest causing air to flow into or out of the lungs is known as pulmonary ventilation.
Lungs are a pair of spongy and air filled organs that are located on either side of the chest. Its function is to supply oxygenated blood to the heart for supplying it to the body and pushing out deoxygenated blood from the heart to outside.
Pulmonary ventilation is the process of receiving the air into the lungs during inhalation and removing the air out of the lungs during expiration. This process is also called as breathing.
The flow of the air occurs due to difference in the pressure gradient between lungs and the atmosphere.
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