Rhombencephalic isthmus


rhombencephalic isthmus rhom·ben·ce·phal·ic isthmus (rŏm’běn-sə-fāl’ĭk)
n.

A narrow portion in the embryonic neural tube delineating the mesencephalon from the rhombencephalon.

The anterior portion of the rhombencephalon that connects with the mesencephalon.

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