Notes in 02Bilaminar&Trilaminar

To Subscribe, use this Key

Status	Last Update	Fields
Published	07/30/2024	While the blastocyst is implanting, the trophoblast differentiates into...{{c1::cytotrophoblast}} - inner layer of mononucleated cells{{c1::syncytiotr…
Published	07/30/2024	Mitotic figures are found in the {{c1::cyt::cyt/syncyti}}otrophoblast
Published	07/30/2024	While the blastocyst is implanting, the epiblast differentiates into...{{c1::hypoblast layer}} - a layer of {{c3::cuboidal}} cells adjacent to the {{c…
Published	07/30/2024	Within the epiblast, the {{c1::amniotic}} cavity forms. Epiblast cells {{c2::adjacent::adjacent/opposite}} to the cytotrophoblast are called {{c1::amn…
Published	07/30/2024	The {{c1::hypo}}blast results in the {{c2::endoderm of the yolk sac}} and {{c2::extraembryonic mesoderm}}
Published	07/30/2024	The {{c1::epi}}blast results in the {{c2::ectoderm of the amnion}}
Published	07/30/2024	At day {{c2::9}}, the {{c1::syncytiotrophoblast}} forms {{c3::vacuoles which fuse to form lacunae}}
Published	07/30/2024	At day {{c2::9}}, the {{c1::hypoblast}} forms {{c3::exocoelomic (Heuser) membrane}}
Published	07/30/2024	{{c1::exocoelomic (Heuser) membrane}} + {{c1::hypoblast}} = lining of the {{c2::exocoelomic cavity or primitive yolk sac}}
Published	07/30/2024	The exocoelomic cavity or primitive yolk sac is {{c1::temporary::temporary/permanent}}
Published	07/30/2024	On Days {{c1::11-12}} Lacunae combining with maternal sinusoids form the {{c2::uteroplacental circulation}}
Published	07/30/2024	On Days {{c1::11-12}}, {{c2::hypo}}blast cells form the {{c4::extraembryonic mesoderm}} between the {{c3::cytotrophoblast and exocoelomic cavity &…
Published	07/30/2024	{{c1::Chorionic}} cavity forms within the {{c2::extraembryonic mesoderm}}
Published	07/30/2024	The extraembryonic mesoderm lining the {{c1::cytotrophoblast and amnion}} is called the extraembryonic {{c2::somatic}} mesoderm
Published	07/30/2024	The extraembryonic mesoderm lining the {{c1::yolk sac}} is called the extraembryonic {{c2::splanchnic}} mesoderm
Published	07/30/2024	Even if the chorionic cavity is developing, the germ disc stays connected to the trophoblast by the {{c1::connecting stalk which develops blood vessel…
Published	07/30/2024	The following changes that occur on endometrial cells while the bilaminar disc is developing is collectively called the {{c1::decidua reaction}}Cells:…
Published	07/30/2024	The surface defect on the endometrium after implantation is filled by {{c2::fibrin coagulum}} and usually healed by the {{c1::13th}} day.
Published	07/30/2024	Implantation bleeding may occur during {{c1::the lacunar stage near the 28th day}}
Published	07/30/2024	On the {{c1::13th}} day/s, {{c2::cyt}}otrophoblast cells penetrate into the {{c2::syncyti}}otrophoblast to form {{c3::primary villi}}
Published	07/30/2024	Once {{c2::hypo}}blast cells add cells that migrate along the {{c3::exocoelomic membrane}}, the {{c1::secondary yolk sac or definitive yolk sac}} form…
Published	07/30/2024	The extraembryonic somatic mesoderm lining the inside of the cytotrophoblast develops as the {{c1::chorionic plate}}.
Published	07/30/2024	{{c1::Placenta Previa}} - Blastocyst implants close to the internal os and the placenta bridges the opening
Published	07/30/2024	In the abdominal cavity, the blastocyst most frequently attaches itself to the {{c1::peritoneal lining of the rectouterine cavity, or pouch of Douglas…
Published	07/30/2024	Sometimes, the blastocyst develops in the ovary proper, causing a {{c1::primary ovarian pregnancy.}}
Published	07/30/2024	{{c1::Hydatidiform mole}} - Trophoblast develops and but no embryonic tissue is present. If high levels of hCG are produced, it may form a {{c2::chori…
Published	07/30/2024	Gastrulation begins with formation of the {{c1::primitive streak}}
Published	07/30/2024	As the notochordal plate proliferates and detaches from the endoderm, it forms a {{c1::definitive notochord}}
Published	07/30/2024	The {{c1::cranial}} end of the notochord develops first
Published	07/30/2024	The notochord starts extending cranially to the {{c1::precordal plate}} and caudally to the {{c1::primitive pit.}} The neuenteric canal temporarily co…
Published	07/30/2024	Tightly adherent ectoderm and endoderm cells with no intervening mesoderm{{c1::Cloacal::caudal}} Membrane{{c1::Oropharyngeal/Buccopharyngeal::cephalic…
Published	07/30/2024	At day {{c2::16}} near the {{c1::Cloacal::caudal}} Membrane, the posterior wall of the {{c3::yolk sac}} forms the {{c3::allantoenteric diverticul…
Published	07/30/2024	Chordal Plate and NotochordParaxial MesodermIntermediate MesodermLateral Plate MesodermExtraembryonic Mesoderm
Published	07/30/2024	More growth happens on the {{c1::cephalic}} end of the embryonic disc
Published	07/30/2024	On the cephalic end, specific differentiation happens at the {{c1::mid-3rd}} weekOn the caudal end, specific differentiation happens at the {{c1::end …
Published	07/30/2024	{{c1::Holoprosencephaly}} may be caused by {{c2::alcohol intake}} where forebrain is small, the two lateral ventricles often merge into a single ventr…
Published	07/30/2024	{{c1::Caudal dysgenesis (sirenomelia)}} may occur in patients with {{c2::maternal diabetes}} where affected individuals exhibit a variable range of de…
Published	07/30/2024	{{c1::Sacrococcygeal Teratomas}} are the most common tumors in newborns where there may be remnants of the primitive streak that persist in the sacroc…
Published	07/30/2024	{{c1::Situs inversus}} refers to a condition where the positioning of all organs is reversed in a mirror image arrangement.
Published	07/30/2024	{{c1::Situs ambiguus or heterotaxy}} refers to a condition where the isomerisms or inversions are present
Published	07/30/2024	[QC] Polysplenia in patients with situs ambiguus 1. left-sided bilaterality 2. right-sided bilaterality{{c1::A. Because your left side has the spleen.…
Published	07/30/2024	[QC] Birth defects 1. Situs inversus 2. Situs ambiguus{{c1::B}}
Published	07/30/2024	The neurotransmitter {{c1::serotonin [5-HT]}} is an important signal molecule for establishing laterality
Published	07/30/2024	Primary villi = {{c1::syncytiotrophoblast + cytotrophoblast}}Secondary Villi = {{c1::syncytiotrophoblast + cytotrophoblast + mesoderm core}}Tertiary o…
Published	07/30/2024	The heart begins to beat in the {{c1::4th}} week of development
Published	07/30/2024	{{c1::Cytotrophoblastic}} cells in the villi penetrate into the overlying syncytium until they reach the maternal endometrium. Here, they establish co…
Published	07/30/2024	{{c1::Stem/Anchoring}} Villi - Villi that extend from the chorionic plate to the decidua basalis (decidual plate)
Published	07/30/2024	{{c1::Free/Terminal}} Villi - Villi that branch from the sides of stem villi through which exchange of nutrients and other factors will occur.
Status	Last Update	Fields