The hair is made up of two sections, the root and the shaft. The root is found below skin surface and the shaft is the part that we see. The hair root consist of three main parts, these are:

THE PAPILLA



•   The blood and nerve supply to the hair root.

•   If the papilla is damaged, hair will stop growing.
The strand portion of the hair is found above the skin surface and is a simple structure composed of keratin, a strong fibrous protein. This is the same kind of protein that makes up the nails and the outer layer of skin. Each strand of hair consists of three layers, an innermost layer or medulla which is only present in large thick hairs. The middle layer known as the cortex, it provides strength, colour and texture to the hair, and the outermost layer which is known as the cuticle. The cuticle is thin and colourless and serves as a protector of the cortex.

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