1. A knife for dividing muscle. 2. In embryos, that part of the somite that develops into skeletal muscle. SYN: muscle plate. 3. All muscles derived from one somite and innervated by one segmental spinal nerve. 4. In primitive vertebrates, the muscular part of a metamere. SYN: myomere. [myo- + G. tomos, a cut]
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myo·tome 'mī-ə-.tōm n
1) the portion of an embryonic somite from which skeletal musculature is produced called also muscle plate
2) an instrument for myotomy
myo·to·mal .mī-ə-'tō-məl adj
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n.
that part of the segmented mesoderm in the early embryo that gives rise to all the skeletal muscle of the body. Visceral (smooth) muscles develop from unsegmented mesoderm (see mesenchyme). See also somite.
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myo·tome (miґo-tōm) [myo- + -tome] 1. an instrument for performing myotomy. 2. the muscle plate or portion of a somite that develops into noncardiac striated muscle; called also myomere. 3. a group of muscles innervated from a single spinal segment.Medical dictionary. 2011.