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embryology

embryology questions

QuestionAnswer
what is embryology study of development and formation of an embryo
what are stem cells are the bodies raw material, they are the cells from which all cells are derived
what are types stem cells embryonic stem cells somatic stem cells
where are somatic stem cells found in the bone marrow ,they are not pluripotent
what are the five categories of stem cells totipotent(zygote and blastomeres) pluripotent(inner cell mass) multipotent(HSCs,blood stem cells) olygopotent (vascular stem cells) unipotent(liver cells)
what are the periods of the prenatal development embryonic period(fertilization to end of the 8 week) fetal period(afer 9 week)
when does pregnancy start? at the moment of implantation
what is the 8 cell called morula
what is the 16 stage called bastocyst
what are the three stages of the blastocyst early stage late stage implantation
what is capacitation? it's a series of physiological changes that cause the destabilization of the cell membrane
what is the consequence of the capacitation? capacitation causes the exposure of molecules that can bind to the zona pellucida
when does the implantation takes place? about the 10 day after fertilization
what is the scientific name of human division holoblastic cleavage
what is another term of blastocyst blastula
which type of stem cells we have from morula to blastocyst they are totipotent stem cells
what is blastocoel a fluid-filled cavity characteristic of animal embryos at the blastula stage
what happens to the trophoblast before gastrulation it divides into syncytiotrophoblast(ST) and cytotrophoblasts(CT)
what are the main functions of the uterus receiving the embryo sheltering the fetus delivering the newborn at term
Stages of embryo implantation hatching apposition adhesion/attachememnt invasion/penetration
what happens in apposition pinopods(finger like projection of the uterus),interact with the adhesion molecules
which types of cytokines are involved in invasion pro inflammatory cytokines
hormones released by corpus luteum progesterone
what is the hormone detected in pregnancy HCG
what happens to the CT it differentiates into extravillous trophoblast
what happens to the blood supply of the mother during pregnancy it increases (about 2L more)
give one condition related to the shortage of blood supply intrauterine growth restriction
who secretes the PIF PIF is secreted by the embryo for the embryo
characteristics of syncytiotrophoblasts non proliferative in direct contact with maternal blood
differentiation of inner cell mass it differentiates into epiblast and hypoblast
bilaminar disc it will split the cavity into two halves
Created by: chaimaa
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