: DEG 
y the latifimus colil : internally it fies on the lingual nerve, 
the Ryloglol us, hyogloffus, and facial artery. i 
of this gland, continued beitin 
oins the Gala. that thefe two are com- 
one continuous fubffan 
The arteries of the fub- maxillary gland are derived from 
the facial, which is imbedded in the gland, and the lingual. 
‘The nerves are from the lingual branch ot the inferior max- 
ular Be 
e excretory tube of this gland is generally called the 
" ‘har tonian D: eh Iti is of large fize, and thin in lis coats. 
mentioned 
oo it beh the mylo- hyoideus, then goe 
the inner furface of the fublingual glan 
juft at the 
bet he mylo-hyoideus and hyoglo 
terwards heeacen the iy ar gland and genio-z Be ae It 
: sere anied by the lingual branch of the inferior maxil- 
ary n 
Th he fibtgual or fmalleft of the three falivary glands, is 
flattene 
deep ee a 
under the tongue, and has the two flat furfaces looking a 
and left. _ is placed between the mylo-hyoidcus, and the 
the two glands are parle and are feparated 
y the genio- ogo mufc o-hyoideus covers its 
furface, a rates it ae the fub-maxillary 
: the inner is in fone with the genio-gloffus. The 
front edge touches the fymphylis of the jaw, while the pof- 
efuperior margin forms 
a projection in the mouth, covered only by the mucous mem- 
e frenum of the tongue back- 
wards, between the under frface of ve ial and the fide 
T s come from the lingual, and 
¢ lingual branch - ie ioferior maxillary. 
Haller has given us a minute t of the e ory dudis 
of this gland in the 6th tne. of his great oo fe. 2. 
as w hen the fub-maxillary and fub-lingual glands are not 
ich we h 
r 
nting in nu ae to 
ee : “Small portions ea a bt fal nature are fometimes 
aan near the fub-lingual, and thefe too have openings into 
the mouth. 
The “fluid nae by thefe glands is a pure and limpid 
ined s we may afcertain in cai falivary fiftule, where 
a ie obferved oe fro reign admixture. But 
i i a mouth, is a 
ery era i 
LUTITION. 
cate the furface of the mouth, is mixed with the water of 
the proper falivary glands. 
hefe mucous glands are of a roundifh form, eee t 
grey colour, and firm texture, ‘T are very rumerous 
t ducts pen stating the 
cheapo isk and ot ter, and have been deferibed under the 
name of molare 
Crags Compe i Gf the a as e have already de- 
{cribed this fluid eup of two TT compo- 
nent parts, produc or by very pone oe 
fon gives the following account of it in the we edition of 
i Syftem of Chemiftry, vol. v. book 5. fe& ‘ Sali 
ut much more "vifeid : it rs 
$a great affinity for ox aygen, 
Be ‘ides waters which 
s a limpid fluid hee weet 
dette r {mell nor tafte. 
which it cies readily from the air. 
conttitutes at leaft for 
ing ingredients: mucilage, albumen, muriate Ae ae 
of fode, phofphate of lime, an ae! > ammonia. The 
8 above as muft be conveyed 
faliva fereted in the oS 
into the h 
the coats ee ees duds. ~ Its eile 
on conftantly, in a greater or ay degre 
mouth moiftened, and the 
(0) 
= 
mo 
= 
to 
t 
Bet bl adr rom 
reflure. miliarly to every 
ere fight or {mell of food wil excite the fali- 
an of a hungry per on; and hence the common 
wa arious accidental cir- 
will alfo eae ane falivary fecretion, as any 
fharp or aaens fubftances taken into the mouth; dnd 
the effeét of mercury in the fame way is well known. 
ix ounces during fupper 
; and it is often poured on very copioufly in perfons 
affefted by mercury. 
Paffage of ie Food into the Rharynx.—The matticated 
mals is {uppofed to be placed on the dorfum of the tongue, 
which is extended laterally, and has its a at eee wa 
by the ftylo oe for the purpofe of holding it 
veniently. mufcles of the lips and cheeks clole the 
fucceffvely i in conta& with the roof of the mouth from be-~ 
fore backwards, and the food is heey oe through the 
ifthmus faucium into the pharynx, Thefe motions are ir 
, forme 
of a contractile fous ee in. 
