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21 relations: Amnion, Amniotic sac, Average, Coelom, Conceptus, Embryo, Embryogenesis, Fetal pole, Gestational age, Heuser's membrane, Hypoblast, Lacuna (histology), Mesoderm, Obstetric ultrasonography, Pregnancy, Somatopleuric mesenchyme, Sphere, Splanchnopleuric mesenchyme, Trophoblast, Uterus, Yolk sac.
Amnion
The amnion is a membrane that closely covers the embryo when first formed.
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Amniotic sac
The amniotic sac, commonly called the bag of waters, sometimes the membranes, is the sac in which the fetus develops in amniotes.
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Average
In colloquial language, an average is a middle or typical number of a list of numbers.
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Coelom
The coelom is the main body cavity in most animals and is positioned inside the body to surround and contain the digestive tract and other organs.
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Conceptus
Conceptus (Latin: conceptio, meaning derivatives of zygote) denotes the embryo and its adnexa (appendages or adjunct parts) or associated membranes (i.e. the products of conception).
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Embryo
An embryo is an early stage of development of a multicellular diploid eukaryotic organism.
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Embryogenesis
Embryogenesis is the process by which the embryo forms and develops.
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Fetal pole
The fetal pole is a thickening on the margin of the yolk sac of a fetus during pregnancy.
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Gestational age
Gestational age is a measure of the age of a pregnancy which is taken from the woman's last menstrual period (LMP), or the corresponding age of the gestation as estimated by a more accurate method if available.
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Heuser's membrane
Heuser's membrane (or the exocoelomic membrane) is a short lived combination of hypoblast cells and extracellular matrix.
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Hypoblast
The hypoblast is a tissue type that forms from the inner cell mass.
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Lacuna (histology)
In histology, a lacuna is a small space containing an osteocyte in bone or chondrocyte in cartilage.
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Mesoderm
In all bilaterian animals, the mesoderm is one of the three primary germ layers in the very early embryo.
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Obstetric ultrasonography
Obstetric ultrasonography is the use of medical ultrasonography in pregnancy, in which sound waves are used to create real-time visual images of the developing embryo or fetus in its mother's uterus (womb).
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Pregnancy
Pregnancy, also known as gestation, is the time during which one or more offspring develops inside a woman.
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Somatopleuric mesenchyme
In the anatomy of an embryo, the somatopleuric mesenchyme is a structure created during embryogenesis when the lateral mesoderm splits into two layers.
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Sphere
A sphere (from Greek σφαῖρα — sphaira, "globe, ball") is a perfectly round geometrical object in three-dimensional space that is the surface of a completely round ball (viz., analogous to the circular objects in two dimensions, where a "circle" circumscribes its "disk").
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Splanchnopleuric mesenchyme
In the anatomy of an embryo, the splanchnopleuric mesenchyme is a structure created during embryogenesis when the lateral mesodermal germ layer splits into two layers.
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Trophoblast
Trophoblasts (from Greek trephein: to feed, and blastos: germinator) are cells forming the outer layer of a blastocyst, which provide nutrients to the embryo and develop into a large part of the placenta.
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Uterus
The uterus (from Latin "uterus", plural uteri) or womb is a major female hormone-responsive secondary sex organ of the reproductive system in humans and most other mammals.
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Yolk sac
The yolk sac is a membranous sac attached to an embryo, formed by cells of the hypoblast adjacent to the embryonic disk.
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Chorionic cavity, Extra-embryonic coelom, Extraembryonic coelom, Gestation sac, Gestational Sac Diameter, Gestational sacs.
References
[1] https://en.wikipedia.org/wiki/Gestational_sac
