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Additional recommended knowledge
Inhalation begins with the onset of contraction of the diaphragm, which results in expansion of the intrapleural space and an increase in negative pressure according to Boyle's Law. This negative pressure generates airflow because of the pressure difference between the atmosphere and alveolus. Air enters, inflating the lung through either the nose or the mouth into the pharynx (throat) and trachea before entering the alveoli.
Other muscles that can be involved in inhalation include:
Look up inhalation, sniffing in Wiktionary, the free dictionary.
|This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Inhalation". A list of authors is available in Wikipedia.|