| prechordal |
situated cranial to the notochord; called also prochordal.
출처: www.mercksource.com/pp/us/cns/cns_health_library.j...
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|---|---|
| prechordal p. |
thickened endoderm, cephalad of the notochord, that combines with ectoderm to become the oropharyngeal membrane.
출처: www.mercksource.com/pp/us/cns/cns_health_library.j...
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