science unit

cuticle is the outer layer of the hair that protects the cortex

cortex provides the hairs strength, determines hair colour and texture

medulla is the inner most layer, not always present

hair follicle anchors each hair into the skin

irs/ors surrounds and protects growing hair

hair shaft is the visible part of the hair

nail plate protects the nail bed

nail bed provides the blood supply

cuticle protects the matrix from bacteria

matrix is responsible for producing…