Labels:bulletin board | cell | earth | ootid | person | sky OCR: HAIR ROoT CHE ROOT OF of HAIR lies in the middle region, or cortex: and tiny pit in the skin called hair the inner region, or medulla Asa follicle Each hair root consists hair grows its sheathed follicle, three circul lar layers: the tough hair cells die and produce large outer portion of the hair, or cuticle; am ounts of protein called keratin. Sheath of hair follicle Cuticle Cortex and medulla of hair shaft AHAIR circular
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