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Anatomy 9

Development

QuestionAnswer
What prepares the secondary oocyte for release? Ovary
What happens after sperm is ready for prom and oogensis is over? You end up with fertilization
What is fertilization? Where does it occur? When does it occur? Occurs within uterine tube 12-24 hrs after ovlulation
What is the cleavage? When does it occur? 30 hours after fertilization, it creates the zygote
What is a zygote? When the diploid number in the cell is renewed after pro-nuclei are combined
Another term for zygote? Stem cell
What is the initial process to create the zygote? Ovulation, fertilization, and then combinig pro-nuclei to get zygote
What is cleavage? (blank)
What are follicles? Where can they be found? multi-layered sac of cells that Protects ovum...found on the ovary
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
What happens at fertilization? Return to diploid number
When and where does fertilization occur? 12-24 after ovulation in uterine tube
What does the inner cell mass? What develops into the embryo
What is the trophoblast? the placenta
Where does cleavage occur? oviduct
What is implantation and where does it occur? When the blastocyst attaches to endometrium in uterus
What is the endometriuM? Inner ining of uterus
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
What are the three germ layers? Ecto, meso, endo
What is ecto? Nervous system and skin
Meso? skelatal, muscle
endo, Internal organs
What are two methods of aging an embryo? Something the someites or the crown to rump length
When is the time period of an embryo? fertilization-8th week
What is a fetus time period? 8th week to birth
What is the importance of the placenta? PEP-production exchange, protection
Contents of umblicibal cord? Veins in wharton's jelly
Where is the amnion located? Roof of of epiblast, to become the protective cavity
Where is the yolk sac located? What is its function? The blastocyst cavity; it functions to be guy,
What is the allantois? Early blood vesser and bladder for cellular membrane
What is the chorion? (blank)
What is chorion? Surrounds embryo and yolk sac
What are the top three teratogens? Radiation, infection, metabolic imbalance
What is the neural tube? wall, rudiment
What are the phyrangial arches? Head and neck region
Created by: talkglitter2486
 

 



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