hair and associate structures Flashcards
, enclosed in hair follicles, are found all over the entire
body surface, except for thick-skinned areas (the palms of the
hands and the soles of the feet), parts of the external genitalia,
the nipples, and the lips.
Hairs
Hair consists of two primary regions
the hair shaft and hair root,
the region projecting from the surface of the skin,
the hair shaft,
the which is beneath the surface of the skin and is embedded within
the hair follicle.
hair root
is a collection of well-nourished
epithelial cells at the base of the hair follicle
The hair bulb
A structure formed from both epidermal and
dermal cells
Hair follicle
A layer of actively dividing epithelial cells called the —- is located on top of the hair papilla.
hair matrix
Small bands of smooth muscle
cells connect each hair follicle to the papillary layer of
the dermis
Arrector pili muscle