To this family belongs the genus Demodex found in the sebaceous glands and hair follicles of various mammals, including man.
In the sebaceous glands the first secretion is formed by a fatty modification of the whole of the central cells of the gland.
A parasite known as the Acarus folliculorum infests the sebaceous glands.
The greasy surface of the skin as a rule comes from the sebaceous glands, as previously described.
In the sebaceous glands and hair follicles they lie with their heads down (fig. 63).
From the hair-follicle also grows out a pair of sebaceous glands, which serve to keep the fully-formed hair moist.
This condition is chiefly caused by a faulty secretion of the sebaceous glands of the ear.
Simple sweat and sebaceous glands are abundant in mammals, with but a few exceptions.
The inflammation starts simultaneously from numerous points, from the hair-follicles, sweat-glands or sebaceous glands.
Demodex folliculorum (fig. 62) is to be found very commonly in the hair follicles and sebaceous glands of man.
sebaceous gland n.
Any of the numerous holocrine glands in the dermis that empty into a hair follicle and produce and secrete sebum. Also called sebaceous follicle.