somitic mesoderm defined in 1951 yearsomitic mesoderm - somitic mesoderm;
somitic mesoderm - Mesoderm on dorsal side of vertebrate embryo, flanking the notochord in two longitudinal strips, each of which as development proceeds becomes segmented into a series of blocks, the somites. (In front of the ears however there is usually no segmentation into somites). From each somite is derived a myotome innervated by one ventral nerve root (so that nerves are also segmentally arranged), and mesenchyme which forms connective tissue, and the vertebral column (latter also segmented). See also: Lateral Plate; Pronephros.
near somitic mesoderm in Knolik
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