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==Introduction==
==Introduction==
Deglutition is the process of swallowing. Food is passed from the [[Oral Cavity - Oropharynx - Anatomy & Physiology|oral pharynx]] into the oesophageal/laryngeal [[Pharynx - Anatomy & Physiology|pharynx]] whilst the [[epiglottis]] closes across the entrance of the [[Trachea - Anatomy & Physiology|trachea]].
Deglutition is the process of swallowing. Food is passed from the [[Oral Cavity - Oropharynx - Anatomy & Physiology|oral pharynx]] into the oesophageal/[[Larynx - Anatomy & Physiology#Laryngeal Pharynx|laryngeal]] [[Pharynx - Anatomy & Physiology|pharynx]] whilst the [[epiglottis]] closes across the entrance of the [[Trachea - Anatomy & Physiology|trachea]].
It is a voluntary reflex preventing food from passing into the [[Trachea - Anatomy & Physiology|trachea]] causing choking and eventually respiratory pneumonia.
It is a voluntary reflex preventing food from passing into the [[Trachea - Anatomy & Physiology|trachea]] causing choking and eventually respiratory pneumonia.
5. [[Epiglottis]] bends back to prevent food entering [[Larynx - Anatomy & Physiology|larynx]].
5. [[Epiglottis]] bends back to prevent food entering [[Larynx - Anatomy & Physiology|larynx]].
6. Bolus enters oesophageal [[Pharynx - Anatomy & Physiology|pharynx]] and [[Oral Cavity - Tongue - Anatomy & Physiology|tongue]] relaxes. Bolus is passed on down [[Oesophagus - Anatomy & Physiology|oesophagus]] by a concentric series of contractions by each set of contractor muscle in turn called [http://en.wikipedia.org/wiki/Peristalsis| peristalsis]
6. Bolus enters [[Larynx - Anatomy & Physiology#Laryngeal Pharynx|laryngeal pharynx]] and [[Oral Cavity - Tongue - Anatomy & Physiology|tongue]] relaxes. Bolus is passed on down [[Oesophagus - Anatomy & Physiology|oesophagus]] by a concentric series of contractions by each set of contractor muscle in turn called [http://en.wikipedia.org/wiki/Peristalsis| peristalsis]
7. Pharyngeopalatine arch reopens, [[Hyoid Apparatus - Anatomy & Physiology|hyoid]] moves back by geniohyoid and glottis reopens.
7. Pharyngeopalatine arch reopens, [[Hyoid Apparatus - Anatomy & Physiology|hyoid]] moves back by geniohyoid and glottis reopens.
==Links==
==Links==
[[Skull and Facial Muscles - Anatomy & Physiology]]
[[Diseases of the conducting airways]]
[[Diseases of the conducting airways]]