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A myotome is the group of muscles that a single spinal nerve innervates. [1] Similarly a dermatome is an area of skin that a single nerve innervates with sensory fibers. Myotomes are separated by myosepta (singular: myoseptum). [2] In vertebrate embryonic development, a myotome is the part of a somite that develops into muscle.
In vertebrates, somites subdivide into the dermatomes, myotomes, sclerotomes and syndetomes that give rise to the vertebrae of the vertebral column, rib cage, part of the occipital bone, skeletal muscle, cartilage, tendons, and skin (of the back). [2] The word somite is sometimes also used in place of the word metamere.
17877 Ensembl ENSG00000111049 ENSMUSG00000000435 UniProt P13349 P24699 RefSeq (mRNA) NM_005593 NM_008656 RefSeq (protein) NP_005584 NP_032682 Location (UCSC) Chr 12: 80.72 – 80.72 Mb Chr 10: 107.32 – 107.32 Mb PubMed search Wikidata View/Edit Human View/Edit Mouse Myogenic factor 5 is a protein that in humans is encoded by the MYF5 gene. It is a protein with a key role in regulating muscle ...
The ankle jerk reflex, also known as the Achilles reflex, occurs when the Achilles tendon is tapped while the foot is dorsiflexed.It is a type of stretch reflex that tests the function of the gastrocnemius muscle and the nerve that supplies it.
The determination of dermomyotome and myotome is regulated by a gene regulatory network that includes a member of the T-box family, tbx6, ripply1, and mesp-ba. [9] Skeletal myogenesis depends on the strict regulation of various gene subsets in order to differentiate the myogenic progenitors into myofibers.
A man wanted for questioning in the death of a woman set ablaze on a subway train is seen in a combination of still images from surveillance video in New York City on Dec. 22, 2024.
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When the general visceral sensory fiber is stimulated, the central nervous system does not clearly discern whether the pain is coming from the body wall or from the viscera, so it perceives the pain as coming from somewhere on the body wall, e.g. left arm/hand pain, jaw pain. So the pain is "referred to" the related dermatomes of the same ...