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amnion    
n. 羊膜[包围胎儿的膜]

羊膜[包围胎儿的膜]

amnion
n 1: thin innermost membranous sac enclosing the developing
embryo of higher vertebrates (reptiles, birds and mammals)
[synonym: {amnion}, {amniotic sac}, {amnios}]

Amnion \Am"ni*on\, n. [Gr. ? the membrane round the fetus, dim.
of ? lamb.] (Anat.)
A thin membrane surrounding the embryos of mammals, birds,
and reptiles.
[1913 Webster]


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  • Amion
    Access to important contact information for your department or hospital
  • Amnion - Wikipedia
    The amnion (pl : amnions or amnia) is a membrane that closely covers human and various other embryos when they first form It fills with amniotic fluid, which causes the amnion to expand and become the amniotic sac that provides a protective environment for the developing embryo
  • Amnion | Fetal Membrane, Embryonic Sac Placental . . .
    Amnion, in reptiles, birds, and mammals, a membrane forming a fluid-filled cavity (the amniotic sac) that encloses the embryo The amniotic sac and the fluid it contains are sometimes referred to as the bag of waters
  • Amnion - Definition, Function and Quiz | Biology Dictionary
    The amnion is an extraembryonic membrane that surrounds a developing amniote embryo It acts as a protective sac along with three other extraembryonic membranes: the chorion, the yolk sac, and the allantois
  • Amniotic Membrane: Anatomy, Function Conditions
    What is the amniotic membrane? The amniotic membrane is a thin, strong membrane that surrounds a fetus during pregnancy Specifically, it’s the inside or inner layer of the amniotic sac, which is the enclosure that holds a fetus The amniotic sac also contains amniotic fluid and an outer layer called the chorion
  • 27. 3C: Amnion Development - Medicine LibreTexts
    The amnion is a closed sac appearing in the inner cell mass as a cavity This cavity is roofed in by a single stratum of flattened, ectodermal cells called the amniotic ectoderm Its floor consists of the prismatic ectoderm of the embryonic disk
  • Amnion | definition of amnion by Medical dictionary
    One layer of the fluid-filled double membrane surrounding the fetus before birth The amnion is the inner of two membranes, the other being the chorion The membranes normally rupture and release the AMNIOTIC FLUID (‘breaking of the waters’ before the baby is born Collins Dictionary of Medicine © Robert M Youngson 2004, 2005 Fig 30 Amnion





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