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Acne vulgaris - stimulated during emotional stress and...

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Integumentary System Acne vulgaris, (common acne) * skin disorder of the pilosebaceous unit that generally develops in adolescence and improves in adulthood. * At least four factors are important in the development of acne: * plugging of the hair follicle with abnormally cohesive desquamated cells, * sebaceous gland hyperactivity , * proliferation of bacteria (especially Propionibacterium acnes) within sebum and inflammation Whiteheads Glands (cont.) Sudoriferous (Sweat) Glands- produce perspiration or sweat which functions in temperature regulation and waste elimination. Two types * Apocrine * found in the axilla, pubic region, and areolae. * open into hair follicles * begin to function at puberty * produce a viscous sticky secretion
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Unformatted text preview: * stimulated during emotional stress and sexual excitement (cold sweat) * Eccrine * distributed throughout the skin except as margins of the lips, nail beds of the fingers and toes, and eardrums * most numerous in palms and soles * ducts terminate at pores at epidermal surface * function throughout life * produce a more watery fluid than apocrine gland Glands (cont.) Ceruminous Glands * present in the external auditory canal * ducts open onto the epidermal surface or into ducts of sebaceous glands * the combined secretion of the ceruminous and sebaceous glands is called cerumen * cerumen and hair provides a barrier against foreign bodies...
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