Definition of sebaceous in the AudioEnglish.org Dictionary. [ sĕ-ba´-shus] pertaining to or secreting sebum. Learn more. ... Medical Terminology: Medical terminology is used to precisely describe the human body components, processes, illnesses, medical procedures, and pharmacology. Total Cards. But they are cute, aren’t they? Acne vulgaris results from an interplay of heredity factors, hormones, and bacteria. [7] These cells express Na+ and Cl− ion channels, ENaC and CFTR (see Fig. The roots are essential medical terminology knowledge, because once you master these roots (good ol’ Greek and Latin ones, that is), […] bul´ah: burn alopecia. Medical definition of pilosebaceous: of or relating to hair and the sebaceous glands. Prefixes are used at the beginning of a word to modify or vary the meaning of the word. abnormal condition of no sweat. Meibomian glands, in the eyelids, secrete a form of sebum called meibum onto the eye, that slows the evaporation of tears. inflammation of a sweat gland. hair loss. Therefore, in a patient with sebaceous hyperplasia, no further investigation for Muir-Torre syndrome is warranted unless there is a family or personal history of colon cancer or sebaceous adenomas. Medical terminology is composed of a prefix, root word, and suffix: Prefix: A prefix is placed at the beginning of a word to modify or change its meaning.Pre means "before." Lesions typically o… bruise: A contusion. This can inflame the comedones, which then change into the characteristic acne lesions. Dobson, G. E. (1878). [42], The preputial glands of mice and rats are large modified sebaceous glands that produce pheromones used for territorial marking. [13] Wax esters and squalene are unique to sebum and not produced as final products anywhere else in the body. Sebaceous glands are oil-producing glands present in the dermis of mammalian skin. ", "Expression of epithelial sodium channel (ENaC) and CFTR in the human epidermis and epidermal appendages", "Why do we have apocrine and sebaceous glands? The structure, consisting of hair, hair follicle, arrector pili muscles, and sebaceous gland, is an epidermal invagination known as a pilosebaceous unit. Order of the Trustees. Secreting fat or sebum. Information about sebaceous in the AudioEnglish.org dictionary, synonyms and antonyms. "Sebaceous-immunobiology is orchestrated by sebum lipids", "Thematic Review Series: Skin Lipids. [4] These and the scent glands in the flanks of hamsters have a similar composition to human sebaceous glands, are androgen responsive, and have been used as a basis for study. Catalogue of the Chiroptera in the collection of the British Museum. breakdown of the tissue in the macula, resulting in loss of central vision. 6 and Fig. Most sebaceous glands are associated with hair follicles. In the skin pores, sebum and keratin can create a hyperkeratotic plug called a comedo. [3], Sebaceous glands are found in hair-covered areas, where they are connected to hair follicles. sebaceous. In the eyelids, meibomian glands, also called tarsal glands, are a type of sebaceous gland that secrete a special type of sebum into tears. The infection may be bacterial (most commonly, staph or strep ) or fungal pathogens. B. Sebum lubricates the skin and hair of mammals. Found on nearly all parts of the body. [3], Sebum, secreted by the sebaceous gland in humans, is primarily composed of triglycerides (≈41%), wax esters (≈26%), squalene (≈12%), and free fatty acids (≈16%). […] [29], Earwax is partly composed of sebum produced by glands in the ear canal. A sebaceous gland is a microscopic exocrine gland in the skin that opens into a hair follicle to secrete an oily or waxy matter, called sebum, which lubricates the hair and skin of mammals. The increased production of sebum can lead to a blockage of the sebaceous gland duct. seaweed marquetry, sea whip, sea wolf, seaworthy, sea wrack, sebaceous, sebaceous adenoma, sebaceous cyst, sebaceous epithelioma, sebaceous gland, sebaceous glands [44] This gland is present more frequently in males than females, and it is hypothesized that the secretions of the gland are used for scent-marking. [5], Insertion of sebaceous glands into hair shaft. Hair . The meibomian glands are also known as tarsal glands, Zeis glands and palpebral glands. [4], The sebaceous glands of a human fetus secrete a substance called vernix caseosa, a waxy, translucent white substance coating the skin of newborns. 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