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Structure of root hair Root hairs are thin and long extensions of the epidermal cells on the surface of the root in the zone of maturation The tiny root hairs have a very large absorptive surface area, which allows absorption of large quantities of water Your hair is made of two parts the hair follicle and the hair shaft Hair follicle anchors or holds the hair into the scalp It has the following parts 1 Bulb The bulb is found at the root of your hair where the protein cells (keratin) grow to make hair 2 Papilla The papilla provides blood supply to the hair follicles for healthy hair 3The hair root ends deep in the dermis at the hair bulb, and includes a layer of mitotically active basal cells called the hair matrix The hair bulb surrounds the hair papilla , which is made of connective tissue and contains blood capillaries and nerve endings from the dermis (Figure 1) Structure Of Hair Follicle Download Scientific Diagram Root hair cell diagram and function