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  2. Hair follicle - Wikipedia

    en.wikipedia.org/wiki/Hair_follicle

    The papilla is a large structure at the base of the hair follicle. [4] The papilla is made up mainly of connective tissue and a capillary loop. Cell division in the papilla is either rare or non-existent. [contradictory] Around the papilla is the hair matrix. A root sheath composed of an external and internal root sheath.

  3. Hair matrix - Wikipedia

    en.wikipedia.org/wiki/Hair_matrix

    The hair matrix, or simply matrix, produces the actual hair shaft as well as the inner and outer root sheaths of hair. [1] References This page was last edited ...

  4. Hair keratin - Wikipedia

    en.wikipedia.org/wiki/Hair_keratin

    Keratin is a crucial fibrous protein found in animals, constituting tough structures like hair, feathers, nails, and horns. It's classified based on tissue origin and sulfur content: soft keratins have lower sulfur, while hard keratins, found in hair and claws, contain more sulfur, creating a stronger structure. [2]

  5. Matrix (biology) - Wikipedia

    en.wikipedia.org/wiki/Matrix_(biology)

    Matrix (biology) In biology, matrix (pl.: matrices) is the material (or tissue) in between a eukaryotic organism's cells. The structure of connective tissues is an extracellular matrix. Fingernails and toenails grow from matrices. It is found in various connective tissues.

  6. Hair cell - Wikipedia

    en.wikipedia.org/wiki/Hair_cell

    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.

  7. Intermediate filament - Wikipedia

    en.wikipedia.org/wiki/Intermediate_filament

    InterPro. Intermediate filaments (IFs) are cytoskeletal structural components found in the cells of vertebrates, and many invertebrates. [1][2][3] Homologues of the IF protein have been noted in an invertebrate, the cephalochordate Branchiostoma. [4] Intermediate filaments are composed of a family of related proteins sharing common structural ...

  8. Stratum corneum - Wikipedia

    en.wikipedia.org/wiki/Stratum_corneum

    The cytoplasm of its cells shows filamentous keratin. These corneocytes are embedded in a lipid matrix composed of ceramides, cholesterol, and fatty acids. [3] Desquamation is the process of cell shedding from the surface of the stratum corneum, balancing proliferating keratinocytes that form in the stratum basale. These cells migrate through ...

  9. Inner root sheath - Wikipedia

    en.wikipedia.org/wiki/Inner_root_sheath

    Inner root sheath. The inner root sheath or internal root sheath of the hair follicle is located between the outer root sheath and the hair shaft. [ 1] It is made of three layers: Henle's layer, Huxley's layer, and the cuticle. [ 2]

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