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stratfied squamous epithelium; bottom layer is the stratum basale - closest to the blood supply, actively mitotic, contains melanocytes; outer layer is the stratum corneum - continually sloughed off, replaced by cells from deeper layers
aka Stratum Corium; composed of connective tissue with blood vessels, nerves, and accessory structures
subcutaneous tissue; anchors the skin to the underlying muscles; connective tissue with an abundance of adipose (cushion, insulation, energy)
dependant on the amount of melanin produced by the melanocytes in the stratum basale; carotene - provides yellow pigment; blood - capillaries give a pink color
divided into visible shaft and the root which is embedded in the skin and surrounded by the follicle
oil glands; associated with hair follicles; secrete sebum; help keep the hair and skin soft and pliable and help prevent water loss
Merocrine sweat glands
most numerous type - open to the surface of the skin through sweat pores and secrete perspiration in response to nerve stimulation and/or heat
Apocrine sweat glands
larger than merocrine glands; limited to axillae and external genitalia where they open to hair follicles; become active at puberty and are stimulated in response to painm emotional stress, and sexual arousal
modified sweat glands; found only in external auditory canal; secrete cerumen (ear wax)
via receptors to detect information about the invironment; also serves as a means of communication between individuals
body temperture via 1 constriction/dilation of blood vessels that affect the amount of heat that escapes from skin 2 sweat glands that are stimulated in response to heat and are inactive in cold temperatures 3 adipose in subcutaneous tissue helps to insulate the body
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