Hair Flashcards
1
Q
What are the 3 layers of the hair shaft?
A
cuticle
cortex
medulla
2
Q
what are the functions of the hair?
A
keep you warm
protect
acts as a barrier from dust and debris
distributes pheromones (sex hormones)
3
Q
what are the 3 types of hair growth and describe their appearance
A
vellous hair
soft downy hair
terminal hair
lanugo hair
4
Q
What is the heley’s layer?
A
outer root sheath
one cell thick
forms the follicle wall and is a continuation of the growing epidermis
5
Q
explain the Huxley’s layer
A
Inner root sheath
2 cells thick
covered in cuticles which inter locks with the cuticle of the hair and holds the hair within the follicle
only present up to sebaceous gland
