Integumentary System: Hair Flashcards
1
Q
Define Hair:
A
Tubes of Keratin produced by hair follicles
Location:Everywhere except palms, soles, lips
2
Q
The function of hair?
A
Thermal regulation + sensation
3
Q
Define the Hair Shaft:
A
Extends beyond the skin(external)
4
Q
Define the Hair Root:
A
Hair + skin enclosed w/in the follice
5
Q
Define a Hair Follicle:
A
Epithelium that surrounds the hair root for hair synthesis
6
Q
Each hair follice is:
A
Innervated causing you to sense/feel movement from a single hair shaft
ex: wind on skin
7
Q
Define Melanocytes:
A
Supply melanin for hair color
lots of melanin= darker hair
less melain=lighter hair
white hair= air bubbles in the hair shaft
8
Q
Define Erector Pili:
A
Smooth muscle that attaches to a hair follicle
Contraction causes goosebumps
