how does hair growth compare to epidermis growth? where do you find the medulla,
ID: 225890 • Letter: H
Question
how does hair growth compare to epidermis growth? where do you find the medulla, cortex, and cuticle of a hair? how would you use the anatomical knowledge to identify dyed vs natural hair? what skin part gives us "goose bumps"? how does hair growth compare to epidermis growth? where do you find the medulla, cortex, and cuticle of a hair? how would you use the anatomical knowledge to identify dyed vs natural hair? what skin part gives us "goose bumps"? how does hair growth compare to epidermis growth? where do you find the medulla, cortex, and cuticle of a hair? how would you use the anatomical knowledge to identify dyed vs natural hair? what skin part gives us "goose bumps"?Explanation / Answer
Epidermal growth factor (EGF) promotes the proliferation and migration of hair follicle outer root sheath cells and also the proliferation and growth of epidermis. EGF receptors (EGFR) are widely distributed in the epidermis and the epidermal derivatives of the cutaneous appendages, and are also localized in the sebaceous glands and over the outer root sheath of the anagen hair bulb. So more the epidermal growth factor, more the epidermis growth, and so more is the growth of hair follicles.
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