Vietnam or Thailand ? Vote for the TOP Country of the Week !
Updated: May 3, 2025
These growths are often multiple; the individual tumours vary in size, and the skin, which is almost devoid of hairs, is glistening and tightly stretched over them. A similar tumour may occur on the nose. The sebaceous adenoma, which originates from the sebaceous glands, forms a projecting tumour on the face or scalp, and when the skin is irritated it may ulcerate and fungate.
Delicate hairs may also be found projecting from the epithelial lining of the cyst. Faulty coalescence of the cutaneous covering of the back occurs most frequently over the lower sacral vertebræ, giving rise to small congenital recesses, known as post-anal dimples and coccygeal sinuses. These recesses are lined with skin, which is furnished with hairs, sebaceous and sweat glands.
On the hypothesis of Natural Selection itself, we must assume that up to that time the race had been well adapted to the surrounding conditions; the temporary and accidental trial and change of conditions, which caused the so-sucking young one to be the "fittest to survive" under the supposed circumstances, would soon cease to act, and then the progeny of the mother, with the accidentally hypertrophied, sebaceous glands, would have no tendency to survive the far outnumbering descendants of the normal ancestral form.
It is estimated that there are 3,800 of these glands in each square inch of skin, and that their total length, in an ordinary person, if placed end to end, would be ten miles. Then there are the sebaceous, or oil glands, which oil the skin and keep it flexible.
#Sebaceous Cysts.# Atheromatous cysts or wens are formed in relation to the sebaceous glands and hair follicles. Sometimes they are multiple, and they may be met with in several members of the same family. They are smooth, rounded, or discoid cysts, varying in size from a split-pea to a Tangerine orange.
"It's Number Forty-three, fourth floor no elevator." After ascending the three flights of stairs, he sat down on the top step, to get his breath. Mr. Hastings was stout, not to say sebaceous and he proposed to begin the interview unhandicapped. Mrs. Brace answered his ring. There was nobody else in the apartment.
According to Senn, the swelling never caused any pain or inconvenience until it inflamed, when it opened spontaneously and suppurated, discharging a large quantity of offensive pus, hair, and sebaceous material, thus proving it to have been a dermoid.
The outer sides of the labia majora are covered with hair, and on the inner sides, which are smooth and moist, but are not true mucous membrane, there are a few sweat glands and numerous large sebaceous glands.
The external appendages are the hairs and nails. These glands, which secrete the perspiration, are very long, and have a spiral coil at the end, but they never ramify; so also the wax-glands of the ears. Sudoriferous and sebaceous glands are found only in mammals. But we find lachrymal glands in all the three classes of Amniotes reptiles, birds, and mammals.
This would seem to indicate that the milk gland was not a hypertrophied sebaceous gland, but a distinct outgrowth, which however had nothing to do with sweat glands. That the intra-uterine gestation, or its cessation, were not originally necessary to determine the functional periodicity of the milk glands is proved by their presence in the Monotremes, which are oviparous.
Word Of The Day
Others Looking