Notes in Zygote

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Published	08/28/2024	A {{c1::complete}} hydatidiform mole is characterized by {{c2::46::46 or 69}} chromosomes.
Published	08/28/2024	W/in the blastocyst, 2 layers form.Inner = {{c1::Embryoblast}}Outter = {{c1::Trophoblast}}.
Published	08/28/2024	Where do blastocysts implant in the uterus?{{c1::Superior, posterior section}}
Published	08/28/2024	When blastocysts implant into endometrium, trophoblast turns into 2 layers:{{c1::Cytotrophoblast }} (inner layer)and{{c1::Syncytiotrophoblast}} -->…
Published	08/28/2024	What compound do pregnancy tests look for?{{c1::beta hCG}}, secreted by the {{c1::Syncytiotrophoblast}} to support corpus luteum
Published	08/28/2024	When blastocyst implants into uterine wall, embryoblast also turns into 2 layers:{{c1::Epiblast (dorsal)}}{{c1::Hypoblast (ventral)}}
Published	08/28/2024	At day 14, we see clear cavities forming in embryo: "2 balloons and a Sandwhich"The {{c2::chorionic cavity}} holds the two ballons (cavities) "sandwhi…
Published	08/28/2024	When female blastocysts are lyonized, silenced chromosome forms a {{c1::Barr Body}}
Published	08/28/2024	With Duchenne Muscular Dystrophy (DMD), what ultimately decides whether a female has disease phenotype?Heterozygous female: If she {{c1::expresse…
Published	08/28/2024	The trophoblast portion of the macula will eventually become the {{c1::placenta}}.
Published	08/28/2024	The first organ system to be developed by a zygote is the {{c1::cardiovascular (uteroplacental)}} system, starting in the first 2 weeks when the zygot…
Published	08/28/2024	1. Epiblast: will give rise to the embryonic {{c1::mesoderm}} and {{c1::ectoderm}} layers. 2. Hypoblast: Adjacent to the blastocoele, will give rise t…
Published	08/28/2024	Bilaminar embyroblast: The endometrial stromal cells enlarge around the conceptus and increase in number and accumulate glycogen and lipids. This is c…
Published	08/28/2024	{{c1::image-occlusion:rect:left=.1929:top=.2324:width=.085:height=.0446}}{{c2::image-occlusion:rect:left=.2711:top=.1699:width=.1847:height=.0435}}{{c…
Published	08/28/2024	{{c1::image-occlusion:rect:left=.0166:top=.3541:width=.1078:height=.067}}{{c2::image-occlusion:rect:left=.2624:top=.4824:width=.1225:height=.048}}{{c3…
Published	08/28/2024	With the development of blood vessels, the {{c2::connecting stalk}} becomes the {{c1::umbilical cord}}.
Published	08/28/2024	{{c2::Barr}} Body • A densely staining {{c1::inactivated X}} chromosome • Present in all somatic cells of female humans• Essential in regulating the a…
Published	08/28/2024	Complete Hydatidiform Mole: {{c1::No embryo}} seen on U/S, {{c1::Very high}} Beta-HCG
Published	08/28/2024	Duchenne Muscular Dystrophy (DMD) • A severe {{c2::X-linked recessive}} disorder of muscle caused by a mutation of the gene DMD. • The DMD gene codes …
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