SALIVARY GLANDS. 959 
vallate papillee alone are serous. The submaxillary and the apical gland of the tongue 
are mixed, the serous alveoli being the more numerous; whilst the sublingual, labial, 
buccal, and all other glands of the mouth, tongue, and palate are said to be mucous. 
SALIVARY GLANDS. 
This term is generally understood to include only the three large masses of 
glandular tissue found on each side of the face—namely, the parotid, submaxillary, 
and sublingual glands. But, as previously pointed out, numerous other small glands 
Internal jugular vein Hypoglossal nerve 
Spinal accessory nerve | Internal carotid artery 
Digastric muscle | Pneumogastric nerve 
Sympathetic 
Ascending pharyngeal artery 
Odont« id nracess 
ee 
Glosso- 
pharyngeal nerve 
Parotid gland 
‘Temporo- 
maxillary vein 
_Post-pharyngeal 
_-— lymphatic gland 
External carotid 4 & 
artery ; LF Zz __ Superior 
Styloglossus - ASIN), INYO VE >. = Te constrictor muscle 
> > Pals - ¥ t ‘ = ~ = fons a . . 
Ascending = - __Posterior palatine 
oa, WN a oT 2 ges Pc 
palatine artery & 1 eg : AS \ iw AZ z= SS eae arch 
ae : LC Se *_Yonsil 
Internal pteryg | Le SEY a7) aS é wi 
__Pharyngo-epiglottic 
Epiglottis—&3 fold 
\ -& 
Frenulum 
epiglottidis 
Masseter 
_Anterior palatine 
arch 
Circunivallate 
\ papilla 
Pharyngeal portion = 
of tongue 
Raphe of tongue 
Conical papillee 
Fungiform papilla 
Buccinator 
Fungiform papilla 
Fic. 646.—HorIZONTAL SECTION THROUGH MouTH AND PHARYNX AT THE LEVEL OF THE TONSILS. 
The stylopharyngeus, which is shown immediately to the inner side of the external carotid artery, and the 
prevertebral muscles, are not indicated by reference lines. 
of a similar nature are found in the lps, cheeks, palate, tongue, etc. These have 
already been sufficiently described, and require no further mention. 
Parotid Gland (glandula parotis).—This, the largest of the salivary glands, is a 
distinctly lobulated mass of a yellowish or light reddish-brown colour, which is 
placed in a deep recess (the parotid recess) at the side of the head, below and in 
front of the ear (Fig. 647). It extends up to the zygoma, down to the angle of 
the jaw or even to a lower level, and backwards to the sterno-mastoid muscle. 
Internally it les on the styloid process, and anteriorly its facial process is continued 
for a variable distance over the surface of the masseter. 
When the gland is carefully removed without disturbing the surrounding parts, the 
recess which it occupies is seen to be a considerable space, between the ramus of 
the jaw in front and the sterno-mastoid muscle behind, with a floor formed of two 
sloping walls, an anterior and a posterior, which meet at an angle corresponding pretty 
TR 
