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13 Cards in this Set
- Front
- Back
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superovulation
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A drug-induced production of multiple eggs for use during assisted reproductive technologies, such as IVF. Superovulation is also sometimes used during IUI treatment. Normally, a woman ovulates just one egg per cycle. With the use of fertility drugs, she may be able to produce several eggs, which can then be retrieved from the ovaries prior to ovulation.
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how many eggs is one hoping to obtain from superovulation?
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10-12 fertalizable eggs
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needle aspiration
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collection of cells or tissue through use of a needle
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cow embryo transfer process
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1. superovulated,
2. fertalized in her, 3. eggs = removed from donor 4. eggs = placed in recipients |
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unilateral ovariectomy
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gonadal compensatory hypertrophy of remaining gonad -- increased size and weight
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major steps of oogenesis
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-oogoria
-primary oocyte -nuclear arrest -secondary oocyte -ovulation -fertalization -zygote |
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4 Major phases of oogenesis
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1. miotic division of primordial germ cells
2. Nuclear Arrest 3. Cytoplasmic growth 4. Resumption of myosis |
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Myosis inhibitory Factor
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actively suppresses myosis
-LH surge reactivates myosis resulting in ovulation |
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oocyte growth
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-addition of zona pellucida (around secondary follicle stage):
formation of junctional complexes between oocytes and surrounding granulosa cells = gap junctions: allows for ionic and electron coupling. oocyte cytoplasm grows 50 times |
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major steps of oogenesis
|
-oogoria
-primary oocyte -nuclear arrest -secondary oocyte -ovulation -fertalization -zygote |
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|
4 Major phases of oogenesis
|
1. miotic division of primordial germ cells
2. Nuclear Arrest 3. Cytoplasmic growth 4. Resumption of myosis |
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|
Myosis inhibitory Factor
|
actively suppresses myosis
-LH surge reactivates myosis resulting in ovulation |
|
|
oocyte growth
|
-addition of zona pellucida (around secondary follicle stage):
formation of junctional complexes between oocytes and surrounding granulosa cells = gap junctions: allows for ionic and electron coupling. oocyte cytoplasm grows 50 times |
