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a.nd middle of the sphamoid bone, inferiorly by the pharynx,
and anteriorly it looks into the mouth.

The posterior nostrils open into the fauces behind the velum
pendulum palati.

There are also, at the sides of the fauces, the openings of the
Eustachian tubes.

The whole of this cavity is lined with a very vascular and
mucous membrane, continued from the mouth and nostrils, on
which are the opening of many mucous glands.

Arteries. The arteries of this cavity come from the inter-
nal maxillary, and neighbouring branches.

Veins. The veins evacuate their blood into the external
jugular.

Nerves. The nerves are branches of the fifth and eighth
pairs.

Use. The use of the fauces is for deglutition, respiration;
speech, and hearing.

Diseases of the fauces. Inflammation, or cynanche ten-
sii/aris—ulceration; which may be either simple, venereal, or
aphtha?—polypus hanging from the nostrils—obstruction of
the Eustachian tubes—anasarca, or angina wdematosa.

Operations. Removal of the nasal polypus when in the
fauces—syringing the Eustachian tubes.

PHARYNX.

The pharynx is a muscular sac, like a funnel, situated behind
the larynx, adhering to the fauces, and terminating in the
oesophagus.

Connexion. It is connected by means of muscles, with, the
«raniam, Vertebrae', and os hyoides.
 
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