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Integument Set II

Stack #176135

LANUGO Delicate, unpigmented hair that cover the 5-6th month old fetus.
TERMINAL HAIRS Long, coarse, and pigmented hair that replaces lanugo on the scalp, eyelids, and eyebrows and in various areas at puberty.
VELLUS HAIRS Short, fine, and unpigmented hair that replaces the lanugo on the rest of the body.
SHAFT OF HAIR Part of the hair that protrudes above the skin surface.
ROOT OF HAIR The part of the hair below the surface of the skin.
MEDULLA The central axis of the hair that contains soft keratin.
CORTEX The large middle layer of the hair that contains hard keratin.
CUTICLE A single layer of cells that forms the surface of the hair.
HAIR BULB An expanded knob at the base of the hair root which contains the blood vessels for nourishment of the hair matrix which is where new hair forms.
MATRIX Inside the hair bulb; undifferentiated cells that form new hair.
ARRECTOR PILI MUSCLE Attached to the hair follicle; produce "goosebulbs"
SEBACEOUS GLANDS Holocrine glands associated with the hair follicle; oil glands; prevents drying and protects against bacteria.
SEBUM Oily, white substance rich in lipids.
ECCRINE/MEROCRINE SWEAT GLANDS Most common type of sweat gland; regulate temperature
APOCRINE SWEAT GLANDS Sweat caused by emotional responses which has an odor (odorless at first, then bacteria attack it and an odor appears).
NAIL ROOT Part of the nail covered by skin
NAIL BODY Visible portion of the nail.
NAIL MATRIX Part of the nail beneath the nail fold
NAIL BED The skin beneath the nail.
HYPONYCHIUM Beneath the free edge of the nail body.
EPONYCHIUM The cuticle.
LUNULA The whitish crescent-shaped area at the base of the nail.
Created by: pstiles