The mouth and throat (UEB uncontracted)

By: Rnib

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Synopsis: This image shows a cross section through the head and neck. There is a locator dot shown, which will be at the top left of the page when the image is the correct way up. The head is facing to the left with the body facing forwards. Only parts of the shoulders are shown. The mouth is in the left centre of the page. The lips are slightly parted. To the right are two incisor teeth shown in section. The rounded tongue is to the right of this. Up from the tongue is the thin hard palette which separates the mouth and nasal cavities. The nasal cavity on the left has a small opening which is the nostril that allows air into the nasal cavity. On the right of the nasal cavity is an opening going past the soft palette into the naso-pharynx. This joins the back of the mouth in the start of the throat. Only the top part of the air passageway (larynx) is shown near the epiglottis, the small flap which closes the air passageway when food is being swallowed. Food goes down the oesophagus at the bottom of the page towards the stomach.

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