释义 |
proamnion
proamnion[prō′am·nē‚än] (embryology) The part of the embryonic area at the sides and in front of the head of the developing amniote embryo, which remains without mesoderm for a considerable period. proamnion
pro·am·ni·on (prō-am'nē-on), An area of the extraembryonic membranes beneath, and in front of, the developing head of a young embryo that remains without mesoderm for some time.proamnion (prō-ăm′nē-ŏn) [Gr. pro, before, + amnion, amnion] A region anterior to the head in a vertebrate embryo in which mesoderm is lacking. |