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  2. Hair analysis - Wikipedia

    en.wikipedia.org/wiki/Hair_analysis

    The only physical evidence the prosecution offered in 1982 was a hair analysis that was "consistent" with Broadwater. More alarmingly, the only reason the case was re-examined was the unusual fact that Sebold had written an extensive memoir of her experiences ( Lucky ), which allowed later investigators to uncover major problems with the case.

  3. Trichorrhexis nodosa - Wikipedia

    en.wikipedia.org/wiki/Trichorrhexis_nodosa

    Trichorrhexis nodosa is a defect in the hair shaft characterized by thickening or weak points (nodes) that cause the hair to break off easily. [ 2 ] [ 3 ] : 636 This group of conditions contributes to the appearance of hair loss , lack of growth, and damaged-looking hair.

  4. Medulla (hair) - Wikipedia

    en.wikipedia.org/wiki/Medulla_(hair)

    Anatomy of hair Diagram of the hair shaft, indicating medulla (innermost), cortex, and cuticle (exterior.) The medulla is the innermost layer of the hair shaft. This nearly invisible layer is the most soft and fragile, and serves as the pith or marrow of the hair. Some mammals don't have a medulla in their hair. The presence or absence of this ...

  5. Hair - Wikipedia

    en.wikipedia.org/wiki/Hair

    the hair shaft, which is the hard filamentous part that extends above the skin surface. It is made of multi-layered keratinized (dead) flat cells whose rope-like filaments provide structure and strength to it. The protein called keratin makes up most of its volume. A cross section of the hair shaft may be divided roughly into three zones.

  6. Cortex (hair) - Wikipedia

    en.wikipedia.org/wiki/Cortex_(hair)

    Diagram of the hair shaft, indicating medulla (innermost), cortex, and cuticle (exterior.) Anatomy of hair. The cortex of the hair shaft is located between the hair cuticle and medulla and is the thickest hair layer. It contains most of the hair's pigment, giving the hair its color. The major pigment in the cortex is melanin, which is also ...

  7. Trichorrhexis invaginata - Wikipedia

    en.wikipedia.org/wiki/Trichorrhexis_invaginata

    Later, this was more appropriately renamed as trichorrhexis invaginata (bamboo hair) for a ball-and-socket–type hair-shaft deformity at the suggestion of Wilkinson et al. [12] [13] In 1974, Mevorah et al. established the clinical relationship between ichthyosis linearis circumflexa and Netherton syndrome, and an atopic diathesis was found to ...

  8. AOL

    search.aol.com

    The search engine that helps you find exactly what you're looking for. Find the most relevant information, video, images, and answers from all across the Web.

  9. Psychemedics Corporation - Wikipedia

    en.wikipedia.org/wiki/Psychemedics_Corporation

    Hair testing analyzes the hair shaft, rather than body fluids like urine or saliva, to determine whether illegal drugs are present. Compared to analysis of body fluids, hair testing is highly resistant to evasion by adulterating or substituting samples, or by simply abstaining from drug use for a few days.