THE SALIVARY GLANDS

The =parotid gland= is smaller than that of the horse, and is light

red-brown in color. It has somewhat the form of a very narrow long

triangle, and lies chiefly on the posterior part of the masseter muscle.

The thick wide upper end partly covers a large subparotid lymph gland.

The small lower end is bent forward and fits into the angle of union of

the jugular and external maxillary veins; it lies on the submaxillary

gland. The parotid duct leaves the lower part of the deep face; in its

course it resembles that of the horse, but it pierces the cheek opposite

the fifth upper cheek tooth.

The =submaxillary gland= is very large, and is pale yellow in color. It

is covered to a small extent by the parotid. Its general form resembles

that of the horse, but its lower (or anterior) end is large and rounded,

and is separated by a small interval only from the gland of the other

side. This part can be distinctly felt in the living animal, and is

related externally to a large submaxillary lymph gland. The duct leaves

the middle of the superficial face of the gland, crosses the

stylo-hyoideus and the intermediate tendon of the digastricus, and is

then disposed as in the horse.

The =sublingual gland= consists of two parts. The dorsal part (Glandula

sublingualis parvicanalaris) is long, thin, and pale yellow in color. It

extends from the anterior pillar of the soft palate about to the

symphysis of the jaw. It has numerous small tortuous ducts (Ductus

sublinguales minores), which open between the papillæ under the side of

the tongue. The ventral part is shorter and thicker, and is salmon pink

in color. It has a single duct (Ductus sublingualis major), which either

opens alongside of or joins the submaxillary duct.

A text-book of veterinary anatomy · 第 495 / 1619 题