pharyngeal membranes(redirected from closing membranes)
thin sheets, composed of ectoderm externally and endoderm internally, which separate the pharyngeal pouches from the overlying pharyngeal grooves in the early embryo.
Synonym(s): closing membranes
pha·ryn·ge·al mem·branes(făr-injē-ăl membrānz)
Thin sheets, which separate pharyngeal pouches from overlying pharyngeal grooves in the early embryo.