buccopharyngeal membrane

synonym: oropharyngeal membrane
https://doi.org/10.1351/goldbook.10476

Membrane present in fetal life that separates the nasal cavities from the pharynx.

Source:
PAC, 2016, 88, 713. (Glossary of terms used in developmental and reproductive toxicology (IUPAC Recommendations 2016)) on page 731 [Terms] [Paper]