Ключевые слова: anatomical, anatomy, biology, black hair, body part, brown, bulb, bulge region, cell, cuticle, dermal, dermatology, dermis, detail, epidermis, fat, follicle, gray hair, hair removal, hair root, health care, healthy, human, layer, loss, medical, medicine, medulla, melanin, melanocyte, microscopic, morphology, old, papilla, pattern, pigment, problem, root, scalp, science, scientific, sebum, sensory, shaft, skin, stem cells, stratum, structure, sweat, tissue,