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E. Carvell, PhD, PT
University of Pittsburgh
NEUROEMBRYOLOGY: NEURAL TUBE & NEURAL CREST
BC&P Box 7.4A
p180 Scanning electron micrographs of neur-ulation. (Source: Smith and Schoenwolf, 1997.)
The Nervous System is one of the first systems to
differentiate in the developing embryo. The neural plate forms at about the 3rd week of
gestation. The neural plate is derived from midline ectoderm (neurectoderm). Neural
tube closure defects result in spina bifida or anencephaly at this early
stage of development.
‘Popeye’ is only one of many who need their spinach.
BC&P Fig. 7.8, p. 179