. The comparative anatomy of the domesticated animals. Veterinary anatomy. TACTILE PAPILLjE PROM THE SKIN, SHOWING THE tactile corpuscles, OE " axile ; A, In the natural state; B, Treated with acetic acid. The Sebaceous Glands lie beside the hair follicles, each hair being flanked by two glands. These small organs are composed of a very granular epithelium, and are usually oval in shape. (They are imbedded in the substance of the derma, and present every degree of com- plexity, from the simplest follicle to the compound lobulated gland. In some situations, their excretory duct
. The comparative anatomy of the domesticated animals. Veterinary anatomy. TACTILE PAPILLjE PROM THE SKIN, SHOWING THE tactile corpuscles, OE " axile ; A, In the natural state; B, Treated with acetic acid. The Sebaceous Glands lie beside the hair follicles, each hair being flanked by two glands. These small organs are composed of a very granular epithelium, and are usually oval in shape. (They are imbedded in the substance of the derma, and present every degree of com- plexity, from the simplest follicle to the compound lobulated gland. In some situations, their excretory ducts open independently on the surface of the epidermis. Those associated with the hairs are raceiform and lobu- lated, consisting of glandular vesicles, which open by short pedunculated tubuli into a common excretory duct, and the latter, after a short course, into the hair follicle. In some parts the ducts are short and straight; in others, where the skin is thick, they are spiral. They are lined by an inversion of the epidermis, which forms a thick and funnel-shaped cone at its commencement, but soon becomes soft and uniform. Sebaceous glands are met with in all parts of the body, but are most abundant in those parts which are naturally exposed to the influence of friction, or require to be supple. Miiller found in the Pig a special cutaneous gland, somewhat resembling the sebaceous glands. It is situated on the inner and posterior aspect of the knee, and is from ^ths to 2 inches in length, and from J to ^ inch in width. In the Sheep, there is found in the skin between the claws, a particular inversion of the integument that forms a small elongated pouch, .curving upwards and terminating in a cul-de-sac. This is the interungulate gland, sinus, or hiflex canal (sinus cutaneus ungularum); it secretes a viscid matter from glands which, according to Erco- lani, are analogous to the sebaceous glands. The pouch is lined with very fine hairs.) The SuDOEiPAEOus Glands are deeper situ-
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