WVSOM Class of 2012 Fertilization, Cleaving, Implantation
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
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| fertilization takes place in what timeframe? | show 🗑
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| show | 3-4 days
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| show | 30 minutes to 6 days
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| what is the phase when spermatozoa are transported up the womb for fertilization and are prepared for removal of their glycoprotein coat by plasma membranes? | show 🗑
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| where do sperm usually meet the ovum in the fallopian tube? | show 🗑
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| what are the 3 barriers to polyspermy? | show 🗑
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| the corona radiata will bar sperm which have not been through what phase? | show 🗑
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| the reaction of sperm to the zona pellucida layer is called what? | show 🗑
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| when sperm touch the ovum's plasma membrane, what 2 events occur? | show 🗑
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| show | male pronucleus
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| a fertilized egg is called a what? | show 🗑
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| show | blastomeres
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| show | 2-cell embryo
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| show | 4-cell embryo
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| after the third cleavage, what is the embryo called? | show 🗑
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| at the 8-cell morula stage, what event occurs? | show 🗑
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| show | inner and outer cells are segregated
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| what is the fate of the inner and outer cells that are segregated during compaction? | show 🗑
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| show | 16-cell morula
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| intercellular spaces between the blastomeres coalesce to form what structure? | show 🗑
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| show | blastocyst
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| the blastocyst outer layer is called what? | show 🗑
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| show | embryoblast
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| show | uterine mucosa
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| the blastocyst hatches from what structure? | show 🗑
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| what is the most common site of incorrect implantation? | show 🗑
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| show | 2nd month
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| injection of what can terminate an ectopic pregnancy? | show 🗑
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| implantation at the uterine internal os is called what? | show 🗑
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| show | rectouterine cavity (douglas' pouch)
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| what are 2 infertilization methods? | show 🗑
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| which method of artificial infertilization harvests secondary oocytes and fertilizes them with dilute sperm? | show 🗑
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| show | intracytoplasmic injection
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| after 4 cycles, primary follicles will respond to what hormone? | show 🗑
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| at the start of the follicular stage, GnRH from the hypothalamus induces the pituitary gland to secrete what hormone? | show 🗑
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| primary follicles' theca interna secrete what hormone? why? | show 🗑
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| show | secretory or progestational phase
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| show | LH
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| after ovulation, Graafian follicles become what? | show 🗑
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| show | lutean cells
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| if the ovum is not fertilized in 9 days, what happens to the corpus luteum? | show 🗑
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| if fertilization occurs, the trophoblast secretes what hormone? what does this hormone do? | show 🗑
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| show | when progesterone production shifts from the corpus luteum to the placenta in the 4th month
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| show | metaphase II
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| show | second polar body
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| show | inner will become the fetus, outer will become the chorion and placenta
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| Clusters of primordial follicles become prepared to enter the menstrual cycle when? | show 🗑
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| show | hypothalamus
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| fsh comes from what gland? | show 🗑
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