Development
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| What prepares the secondary oocyte for release? | Ovary
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| What happens after sperm is ready for prom and oogensis is over? | You end up with fertilization
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| What is fertilization? Where does it occur? When does it occur? | Occurs within uterine tube 12-24 hrs after ovlulation
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| What is the cleavage? When does it occur? | 30 hours after fertilization, it creates the zygote
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| What is a zygote? | When the diploid number in the cell is renewed after pro-nuclei are combined
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| Another term for zygote? | Stem cell
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| What is the initial process to create the zygote? | Ovulation, fertilization, and then combinig pro-nuclei to get zygote
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| What is cleavage? | (blank)
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| What are follicles? Where can they be found? | multi-layered sac of cells that Protects ovum...found on the ovary
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| What is the zona pelcucida and corona radiate? | Protective layer around secondary oocyte that must be penetrated for fertilization: The corona is far outside, zona is second layer penetrated
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| What happens at fertilization? | Return to diploid number
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| When and where does fertilization occur? | 12-24 after ovulation in uterine tube
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| What does the inner cell mass? | What develops into the embryo
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| What is the trophoblast? | the placenta
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| Where does cleavage occur? | oviduct
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| What is implantation and where does it occur? | When the blastocyst attaches to endometrium in uterus
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| What is the endometriuM? | Inner ining of uterus
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| What is gastrulation and where does it occur? | When the top cells in blastocyst go into the internal cavity to make room for a third layer
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| What are the three germ layers? | Ecto, meso, endo
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| What is ecto? | Nervous system and skin
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| Meso? | skelatal, muscle
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| endo, | Internal organs
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| What are two methods of aging an embryo? | Something the someites or the crown to rump length
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| When is the time period of an embryo? | fertilization-8th week
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| What is a fetus time period? | 8th week to birth
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| What is the importance of the placenta? | PEP-production exchange, protection
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| Contents of umblicibal cord? | Veins in wharton's jelly
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| Where is the amnion located? | Roof of of epiblast, to become the protective cavity
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| Where is the yolk sac located? What is its function? | The blastocyst cavity; it functions to be guy,
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| What is the allantois? | Early blood vesser and bladder for cellular membrane
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| What is the chorion? | (blank)
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| What is chorion? | Surrounds embryo and yolk sac
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| What are the top three teratogens? | Radiation, infection, metabolic imbalance
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| What is the neural tube? | wall, rudiment
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| What are the phyrangial arches? | Head and neck region
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