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Hair analysis (alternative medicine) Hair casts; Hair cloning; Hair disease; Hair fetishism; Hair follicle nevus; Hair hang; Hair loss; Hair oil; Hair removal; Hair tattoo; Hair texture powder; Hair theft; Hair washing without commercial shampoo; Hair whorl; Hair's breadth; Hairwork; Head shaving; Human hair growth; Hypertrichosis; Hypotrichosis
Hair care in Tianjin, China, in late Qing dynasty . Hair care or haircare is an overall term for hygiene and cosmetology involving the hair which grows from the human scalp, and to a lesser extent facial, pubic and other body hair. Hair care routines differ according to an individual's culture and the physical characteristics of one's hair.
Scalp hair was reported to grow between 0.6 cm and 3.36 cm per month. The growth rate of scalp hair somewhat depends on age (hair tends to grow more slowly with age), sex, and ethnicity. [3] Thicker hair (>60 μm) grows generally faster (11.4 mm per month) than thinner (20–30 μm) hair (7.6 mm per month). [4]
The hair follicle is an organ found in mammalian skin. [1] It resides in the dermal layer of the skin and is made up of 20 different cell types, each with distinct functions.. The hair follicle regulates hair growth via a complex interaction between hormones, neuropeptides, and immune cells
A pull test is performed in order to diagnose a patient with loose anagen hair syndrome as one of the characteristics of this hair condition is hair that is easily removed from the scalp. [ 7 ] [ 10 ] A group of around 40-60 hairs, that are attached to the scalp, is pulled in a clement manner.
Hair is a protein filament that grows from follicles found in the dermis.Hair is one of the defining characteristics of mammals.The human body, apart from areas of glabrous skin, is covered in follicles which produce thick terminal and fine vellus hair.
In mammalian outer hair cells, the varying receptor potential is converted to active vibrations of the cell body. This mechanical response to electrical signals is termed somatic electromotility; [13] it drives variations in the cell's length, synchronized to the incoming sound signal, and provides mechanical amplification by feedback to the traveling wave.
The principle function of epithelial tissues are covering and lining of free surface; The cells of the body's surface form the outer layer of skin. Inside the body, epithelial cells form the lining of the mouth and alimentary canal and protect these organs. Epithelial tissues help in the elimination of waste.