Development
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| What is the process of pregnancy? | Fertilization to implantation to embryo development to fetal development to birth, 38 weeks later
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| What is developmental bio: | Student from fertilization of secondary oocyte to adult organism (embryology)
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| What is the embryonic period: | Fertilization to 8 week--embryo state
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| Fetal period: | Week nine to birth, fetus features
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| Prenatal development: | From fertilization to birth = embryo and fetal stages
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| Where are the ovaries located? | In superior pelvic cavity
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| Uterine tubles: | Route for sperm to get in or for secondary oocyte to get to uterus
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| Endometrium: | Lining of uterus shed during menstration
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| Myometrium: | Muscle later in endometrium
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| What happens in the first week of the embryonic period: | fertilization and blastocyst forms
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| What is fetilization? Where does it occur | haploid sperm and oocyte pronuclei combine to form diploid cell: This occurs 12-24 hours after ovulation in uterine tubes
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| How does the sperm get from vagina to oocyte? | Through the cervical canal to uterine tube (where oocyte is) by contractions of uterine walls
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| Capacitation: What does the femal tract do in this time? | Sperm gets excited and prepares its PM for merging with oocyte's PM: femal tract removes cholestrol, glycoprotiens from around head of sperm
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| Corona radiata and zona pellucida: | What sperm must penetrate to get to oocyte
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| What is the fusion of sperm to secondary ooctyte: | Syngamy
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| What is the cleaage of a zygote? | rapid cell growth in zygote, where cell number increases, but cell size decreases to still fit in zygote
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| What are the cells that reduce in size called? | Blastomers
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| Morula: | cells surrounded by zona pellucide that are orginal size as original zygote
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| What is the blastocys cavity? | Combination of uterine milk with space between blastomers
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| Inner cell mass becomes what? | Develops into embryo
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| Trophoblast: | Develops into fetal placenta
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| What happens on the fifth day of fertilization? | Blastocys hatches by enzyme eating through zona pellucida, which leads to implantation
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| What is implantation: | Blastocyst attaches to endometrium, which becomes enlarged and increases in blood vessels
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| Decidua: | Endometrium after iplantation, which detaches after birth of m,enstration
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| D. Basalis: | becomes maternal placenta
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| D. caps: | endometrium between embryo and uterine cavity
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| What are the two layers of trophoblast: | Syncgtiorophblast and cytotrophoblast: between inner cell matrix
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| Where does the blastocyst get buried? | In endometrium and inner 1/3 of myometrium
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| Amniotic cavity: | Small cavity in epiblast (ectoderm)
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| Amniotic fluid: | maternal blood, cushions baby and holds its waste
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| In a fetus, what holds oxygenated blood | the two veins of umblical cord
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| What hoolds deoxygenated blood? | artery
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| What can be used to age embryo? | somites (lines along spine of embryo) or the measurement from crown to rump of fetus.
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| Ectoderm forms: | Skin, nervous system
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| Mesoderm forms: | nervous supply, skelaton
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| Endoderm forms | Internal organs
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| Gastrolation: | tops cells move into to get three layers
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