bilaminar, cleavage, trilaminar stages
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| show | syncytotrophoblast
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| show | cytotrophoblast
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| show | no
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| show | from contribution from the cytotrophoblast
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| show | glandular secretions cause the endometrium surrounding the embryo to become edematous with glycogen and lipids
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| this is the region of the endometrium that will later develop into the maternal component of the placenta | show 🗑
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| what two layers make up the bilaminar disc | show 🗑
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| show | amnion, epiblast, hyphoblast
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| this is a thin membrane which forms along the interior surface of the cytotrophoblast | show 🗑
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| this is a sheet of columnar cells where the fetus develops from. | show 🗑
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| show | amniotic cavity
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| show | amniotic cavity
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| this is a sheet of small cuboidal cells between the epiblast and blastocele | show 🗑
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| when the blastocyst completely embeds in the endometrium, this structure closes the hole that was created on the surface of the endometrium | show 🗑
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| show | extraembryonic endoderm
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| this structure consists of the extraembryonic endoderm and the space that it surrounds | show 🗑
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| the extraembryonic mesoderm forms between these two layers | show 🗑
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| the connecting stalk develops into what embryonic structure? | show 🗑
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| show | splanchnic extraembryonic mesoderm
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| show | somatic extraembryonic mesoderm
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| show | syncytotrophoblast, trophoblast, extraembryonic mesoderm
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| the layer of the chorion lining the yolk sac is the... | show 🗑
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| the layer of the chorion lining the cytotrophoblast is called this | show 🗑
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| what often causes a delay in diagnosing pregnancy? | show 🗑
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| the ovum is drawn into the oviduct via sweeping of this structure | show 🗑
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| show | cilia
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| fertilization occurs at this structure of the fallopian tube | show 🗑
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| show | capacitation
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| show | polyspermy
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| show | corona radiata, zona pullucida, zona rxns
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| once the sperm reach the zona pellucida, this type of reaction occurs, wehre the cap surrounding the sperm head ruptures. it releases digestive enzymes that dissolve glycoproteins of the zona | show 🗑
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| show | cortical reaction. it prevents multiple sperm from going into the ovum
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| when the male and female pronucleus come together, what do they do? | show 🗑
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| show | cleavage
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| show | blastomeres
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| the third cleavage that results about three days after fertilization results in this structure | show 🗑
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| when blastomeres of the eight cell embryo are pulled closer together via tight junctions | show 🗑
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| when the embryonic structure is at the uterus, fluid begins to seep through the zona pellucida forming intracellular spaces called this | show 🗑
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| the primitive streak is made up of these two structures | show 🗑
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| the cranial end of the primitive streak | show 🗑
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| show | primitive groove
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| show | hansen's node
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| show | it begins at the caudal end and elongates toward the cranial end then extends across about two thirds the length of the disc. the streak then regresses, completely disappearing.
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| show | gastrulation
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| show | epiblast
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| as cells migrate into spaces between epiblast andhypoblast, they spread in lateral and cranial directions. in the lateral direction, mesoderm cell smigrate to the edge of the germ disc where they contact this structure | show 🗑
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| which cells are older, cranial or caudal mesodermal cells? | show 🗑
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| this develops if the primitive streak fails to regress completely. it is the most common newborn tumor and consists of a mixture of different cell types bc they develop from pluripotent cells. can be removed surgically | show 🗑
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| show | caudal dysgenesis
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| in caudal dysgenesis, when the legs become fused, a mermaid like appearance happens..this structure is called... | show 🗑
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| a common teratogenic factor present that may result in caudal dysgenesis is this... | show 🗑
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| show | notochord
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| after the notochord serves its purpose as an organizer the majority of it generates via apoptosis, but some notochord structures do persist in the adult... | show 🗑
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| show | notochordal process
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| is the notochord ectodermal, endodermal, or mesodermal? | show 🗑
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