Hair Flashcards
2 types of hair (2)
Vellus
Terminal
_ found mainly in men
Terminal hair
Terminal hair has _ which responds to testosterone
Central core or medulla
Hair composed of flexible strands of hard _
Protein
Protein called _
Keratin
Keratin produced in _
Hair follicles
Expanded end of hair follicle is called the _
Hair bulb
Hair bulb receives knots of capillaries which _
Nourishes root of growing shaft
Rounder the shaft, _ the hair
Straighter
Three concentric layers in hair are _ (3)
Medulla
Cortex
Cuticle
Medulla is central core which only present in _
Terminal hair
Cortex consists of several layers of _
Flattened cells
Flattened cells in cortex contain various amounts of
Melanin
Cuticle is _ layer
Outer
Cuticle formed from a single layer of _
Overlapping cells
When cuticles wear away at ends of long hairs _ may occur
Split ends
