Related topics from Britannicaacne any inflammatory disease of the sebaceous, or oil, glands of the skin. There are some 50 different types of acne. In common usage, the term acne is frequently used alone to designate acne vulgaris, ...
skin disease The hair follicle from which the hair shaft emerges serves as a duct for conducting sebum, the oily product of the sebaceous gland, to the skin surface. The hair follicle and sebaceous gland together ...
Klinger, Georgette Czech-born American skin-care innovator (b. 1915, Brno, Czechoslovakia [now in the Czech Republic]-d. Jan. 9, 2004, New York, N.Y.), revolutionized the field of cosmetics and skin care by developing ...
drug Tetracyclines have a common structure but differ from each other by the presence or absence of chloride, methyl, and hydroxyl groups. Although these modifications do not change their broad-spectrum ...
infectious disease Every animal species possesses some natural resistance to disease. Humans have a high degree of resistance to foot-and-mouth disease, for example, while the cattle and sheep with which they may be in ...
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