A thin membrane surrounding the embryos of mammals, birds, and reptiles.
The placental membrane immediately surrounding the foal.
innermost fetal membrane; a thin transparent sac that holds the fetus suspended in amniotic fluid; also called the bag of waters
see amniotic sac.
(from Greek = a lamb) the wall component of the dorsal entocyst vesicle, containing the amniotic fluid; consists of amniotic ectoderm + mesoblast.
amniotic egg - a vertebrate egg with a shell which contains large nutrient and water stores and a number of specialized membranes. Found only in the reptiles, birds and monotremes. amylase - a complex of enzymes which break down starches into sugars
a thin, tough membranous sac that surrounds the embryo and fetus
A thin membtanous fluid-filled sac surrounding the embryo.
A membrane that surrounds the amniotic cavity, covering the fetal side of the placenta and the outer surface of the umbilical cord. It also becomes the outermost layer of skin on the developing fetus.
the fluid-filled sac initially above the embryonic disc (ectoderm and extaembryonic mesoderm), with embryoic disc folding this sac is drawn ventrally to enclose (cover) the embryo, then fetus.
Fluid-filled sac surrounding a developing embryo, characteristic of amniotes.
Amniotic sac. Bag of waters. The inner membrane of the uterus that holds the baby suspended in the amniotic fluid.
the innermost membrane of the sac enclosing the embryo; it is filled with a watery fluid called amniotic fluid.
The inner of the two membranes that form the sac containing the fetus and the amniotic fluid.
thin innermost membranous sac enclosing the developing embryo of higher vertebrates (reptiles, birds and mammals)
The inner membrane lining the foetal sac.
am-nee-on Bag containing the amniotic fluid
A thin membrane surrounding the embryo during incubation. The amnion is the inner of the two fetal membranes (the chorion is the outer one). It contains the amniotic fluid.
The innermost of four extraembryonic membranes; encloses a fluid-filled sac in which the embryo is suspended.
refers to the thin, membranous sac that contains amniotic fluid and the developing fetus during pregnancy.
innermost membrane of the sac enclosing the embryo of a mammal, reptile, or bird
the avascular inner "shell" of the conceptus, embryologically continuous with the epithelium of the umbilical cord and the fetal skin. It forms the transparent membranous sac that is filled with amniotic fluid
A transparent sac, filled with colorless fluid, surrounding the embryo; the amnion and amniotic fluid protect the developing embryo from shock and permit it to exercise.
A sac filled with fluid that surrounds the embryo and protects it from injury.
A thin, membranous, fluid-filled sac surrounding an embryo (as inside bird or reptile eggs, or in mammals) which keeps the embryo from drying out.
Innermost of the extra-embryonic membranes enveloping the embryo in utero and containing the amniotic fluid. (SMD)
Gr. amnion - the membrane around the fetus]. An extraembryonic membrane surrounding the embryo and containing the amniotic fluid which protects the embryo from shock and desiccation. It consists of ectoderm and somatic mesoderm.
The tissue membrane that expands to enclose the fetus and form the AMNIOTIC SAC, protecting and cushioning the fetus during pregnancy, within which is the AMNIOTIC FLUID (bag of water).
The amnion is the membrane around the fetus. It surrounds the amniotic cavity.
One of the four extraembryonic membranes; surrounds the developing embryo or fetus.
The amnion is the inner of the two fetal membranes enclosing the developing embryo (the outer being the chorion or serosa). The amniotic cavity, which lies between the embryo and the amnion, is filled with amniotic fluid. This prevents adhesions between the embryo and parts of the egg.
inter layer of the membrane
The membrane enclosing a developing foetus; it's filled with a protective liquid called amniotic fluid.
The amnion is a membranous sac which surrounds and protects the embryo. It is developed in reptiles, birds, and mammals, which are hence called â€œAmniotaâ€; but not in amphibia and fish, which are consequently termed â€œAnamniaâ€.