Accessory Structures Of Skin Flashcards
1
Q
Hair follicles:
A
Tubular compartments containing 1 hair
Extend deeply into the dermis & hypodermis
2
Q
Hair bulb:
A
The deepest portion of a bair follicle
Contains the hair papilla, area of connective tissue w/ blood vessels, nerves, hair matrix
3
Q
Hair matrix:
A
A region that actively divides cells that give rise to the hair root
4
Q
Hair shaft:
A
The part of hair that is on the exterior
Cells become keratinized and then die
5
Q
Arrector Pili Muscles:
A
Smooth muscle fibers attaches to the connective tissue sheaths of hair follicles
In response to cold, fear, anger they contract to an upright position to form goosebumps
