Lectures on acne, acne rosacea, lichen and prurigo / by Tom Robinson, Physician to St. John's Hospital for Skin Diseases.

  • Robinson, Tom
Date:
1884
Catalogue details

Licence: Public Domain Mark

Credit: Lectures on acne, acne rosacea, lichen and prurigo / by Tom Robinson, Physician to St. John's Hospital for Skin Diseases. Source: Wellcome Collection.

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    Tlie sebaceous o-lauds are found in every ^5 t/ situation of the cutaneous surface, with the exception of the palms of the hands, the soles of the feet, the last phalanges of the toes and tingei’s, and tliey are absent on the glans ])enis. They are the only secret- ing glands whicli are found on the cutaneous surface, excepting the sweat ducts, and they have their analomie in the mucous glands in the interior of the liody. The sebaceous glands are sometimes composed of two or three gland lobules, Avliich have an excre- tory duct, whicli duct rarely ojiens im- mediately upon the surface, hut as a rule into the hair follicle. There is an excep- tion in the case of the long hairs, such as we see on the head, pubis, or axilhe; in these situations the reverse is the case, whilst in the pubescent hairs the small hair follicles open into the wide excretory duct of the o-land. The gland sac is always situated in the corium, and never reaches into the sub- cutaneous connective tissue. This is why a molluscum contasfiosum tubercle rises so distinctly from the plane of the skin.
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