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    Glossary Innervation

    supply of nerves to a body part

    Innervation refers to the supply of nerves to a specific body part, enabling it to receive and send signals to the brain and spinal cord. In the context of hair and skin, innervation is crucial for sensing touch, pain, and temperature, and it also plays a role in the regulation of hair growth and skin health.

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      Tactile Innervation Densities Across the Whole Body

      research Tactile innervation densities across the whole body

      142 citations , September 2020 in “Journal of neurophysiology”
      This study estimates that young adults have about 230,000 tactile afferent fibers innervating their skin, with density varying by region and decreasing with age.

      research Developmental timing of hair follicle and dorsal skin innervation in mice

      86 citations , May 2002 in “Journal of comparative neurology”
      This study observed that hair follicle innervation in C57BL/6 mice occurs in sequential stages that closely correlate with the development of hair follicles, indicating an interdependent relationship between neuronal and epithelial morphogenesis.
      Tactile Innervation Densities Across the Whole Body

      research Tactile innervation densities across the whole body

      4 citations , April 2020 in “bioRxiv (Cold Spring Harbor Laboratory)”
      This study estimates that approximately 230,000 tactile afferent fibers innervate the human body's skin, with varying densities across different regions correlating with spatial acuity and hair follicle density.

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