fetal membrane

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Related to extraembryonic membrane: extraembryonic mesoderm

fe·tal mem·brane

a structure or tissue that develops from the zygote but does not form part of the embryo proper.

fetal membrane

n.
Any of the membranous structures closely associated with or surrounding a developing vertebrate embryo, including the amnion, chorion, allantois, and yolk sac. Also called embryonic membrane.

fe·tal mem·brane

(fē'tăl mem'brān)
A structure (e.g., chorion) or tissue that develops from the zygote but does not form part of the embryo proper.
Synonym(s): embryonic membrane.

fetal membrane

Any of the membranous structures that protect and support the embryo and provide its nutrition, respiration, and excretion. The structures are yolk sac, allantois, amnion, chorion, decidua, and placenta.
See also: membrane
References in periodicals archive ?
Evolution of reptilian placentation: development of extraembryonic membranes of the Australian scincid lizards, Bassiana duperreyi (oviparous) and Pseudemoia entrecasteauxii (viviparous).