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    GlossaryHair Anatomy

    structure and components of a hair strand and follicle

    Hair anatomy refers to the structure and components of a hair strand and its follicle. Each hair consists of the hair shaft, which is the visible part above the skin, and the hair root, which is embedded in the follicle beneath the skin. The hair shaft is made up of three layers: the cuticle (outer layer), the cortex (middle layer), and the medulla (inner layer). The follicle includes the bulb, where cells divide and grow to form the hair, and is surrounded by sebaceous glands that produce oil to condition the hair and skin.

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      learn Hair Fibers

      cosmetic product that temporarily makes hair appear thicker

      learn Adenosine

      nucleoside used for hair regrowth stimulant properties

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      glaucoma medication with hair follicle stimulant effects

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      an anticonvulsant repurposed for hair loss via histone inhibition

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      Hair Anatomy for the Clinician

      research Hair Anatomy for the Clinician

      139 citations, July 1991 in “Journal of The American Academy of Dermatology”
      Understanding hair follicle anatomy helps diagnose hair disorders.

      research Anatomy and Physiology of Hair

      14 citations, May 2017 in “InTech eBooks”
      Hair is important for protection, social interaction, and temperature control, and is made of a growth cycle-influenced follicle and a complex shaft.
      The Human Hair: From Anatomy to Physiology

      research The Human Hair: From Anatomy to Physiology

      107 citations, December 2013 in “International Journal of Dermatology”
      The document concludes that hair is complex, with a detailed growth cycle, structure, and clinical importance, affecting various scientific and medical fields.

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