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  2. Somite - Wikipedia

    en.wikipedia.org/wiki/Somite

    The dermatome is the dorsal portion of the paraxial mesoderm somite which gives rise to the skin . In the human embryo, it arises in the third week of embryogenesis. [2] It is formed when a dermomyotome (the remaining part of the somite left when the sclerotome migrates), splits to form the dermatome and the myotome. [2]

  3. Somitomere - Wikipedia

    en.wikipedia.org/wiki/Somitomere

    The first seven somitomeres give rise to the striated muscles of the face, jaws, and throat. [2]The remaining somitomeres, likely driven by periodic expression of the hairy gene, begin expressing adhesion proteins such as N-cadherin and fibronectin, compact, and bud off forming somites.

  4. Somitogenesis - Wikipedia

    en.wikipedia.org/wiki/Somitogenesis

    Different species have different numbers of somites. For example, frogs have approximately 10, humans have 37, chicks have 50, mice have 65, and snakes have more than 300, up to about 500. Somite number is unaffected by changes in the size of the embryo through experimental procedure.

  5. Dermatome (anatomy) - Wikipedia

    en.wikipedia.org/wiki/Dermatome_(anatomy)

    A dermatome is an area of skin that is mainly supplied by afferent nerve fibres from the dorsal root of any given spinal nerve. [ 1 ] [ 2 ] There are 8 cervical nerves (C1 being an exception with no dermatome), 12 thoracic nerves , 5 lumbar nerves and 5 sacral nerves .

  6. File:Dermatoms alt.svg - Wikipedia

    en.wikipedia.org/wiki/File:Dermatoms_alt.svg

    English: A diagram showing human dermatomes, i.e., skin regions with respect to the routing of their afferent nerves through the spinal cord. Svenska: Människans dermatom, sensoriska zonindelning. Date

  7. Paraxial mesoderm - Wikipedia

    en.wikipedia.org/wiki/Paraxial_mesoderm

    Paraxial mesoderm, also known as presomitic or somitic mesoderm, is the area of mesoderm in the neurulating embryo that flanks and forms simultaneously with the neural tube. ...

  8. Cutaneous innervation - Wikipedia

    en.wikipedia.org/wiki/Cutaneous_innervation

    The peripheral nervous system (PNS) is divided into the somatic nervous system, the autonomic nervous system, and the enteric nervous system.However, it is the somatic nervous system, responsible for body movement and the reception of external stimuli, which allows one to understand how cutaneous innervation is made possible by the action of specific sensory fibers located on the skin, as well ...

  9. Dermatome - Wikipedia

    en.wikipedia.org/wiki/Dermatome

    Dermatome may refer to: Dermatome (anatomy), an area of skin that is supplied by a single pair of dorsal roots; Dermatome (embryology), the portion of the embryonic paraxial mesoderm, the somite, which gives rise to dermis; Dermatome (instrument), a surgical instrument used to produce thin slices of skin

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