ch 12 skin: the integumentary system. terms skin- cutane/o, dermat/o, derm/o- intact skin is the...
TRANSCRIPT
Ch 12 Skin: the Integumentary System
Terms Skin- cutane/o, dermat/o, derm/o- Intact
skin is the first line of defense for the immune system. Skin also waterproofs the body and is the major receptor for the sense of touch.
Sebaceous glands- seb/o- Secret sebum (oil) to lubricate the skin and discourage the growth of bacteria on the skin.
Sweat glands- hidr/o- secrete sweat to regulate body temperature and water content and excrete some metabolic waste.
More Terms Hair- pil/I, pil/o- Aids in controlling the
loss of body heat. Nails- onych/o, ungu/o- Protect the
dorsal surface of the last bone of each finger and toe.
Keratin- A fibrous water repellent protein found in hair and nails
Arrector Pili- “Hair-Raiser” - One of the small fan-shaped smooth muscles associated with the base of each hair that contract when the body surface is chilled and erect the hairs, compress an oil gland above each muscle, and produce the appearance of goose bumps.
Ch 12 Terms albin/o white derm/o, dermat/o skin lip/o fat, lipid melan/o black, dark myc/o fungus onych/o fingernail or toenail pil/o hair rhytid/o wrinkle seb/o sebum xer/o dry
Words Albinism> Any inherited deficiency or absence of pigment
in the skin, hair, and eyes due to an abnormality of in production of melanin
Dermatitis> Inflammation of the upper layers of skin Lipectomy> Surgical removal of fat beneath the skin Melanoma> Malignant skin cancer derived from cells
capable of forming melanin Mycosis> Any disease caused by fungus Onychia> Inflammation of the matrix of the nail Arrector pili> Tiny fibers attached to hair follicles that
cause the hair to stand erect Rhytidectomy> Surgical removal of excess skin to
eliminate wrinkles; also known as a facelift Seborrhea> Any of several common skin conditions in
which there is an overproduction sebum (oil) Xeroderma> Excessively dry skin