eggs

infertility

couple having unprotected sex for 1 year and not becoming pregnant
a fertile male has __% normal sperm

12%
3 parameters of male fertility
- sperm count
- sperm motility
- sperm morphology
Kartagener Syndrome
- immotile cilia
- respiratory infections
- left-right situs inversus
- (fertility can be restored using ICSI)
achondroplasia is related to

advanced paternal age
what happens to sperm as men age?
- decline in sperm count, motility, morphology
- increase in Apert syndrome, achondroplasia, schizophrenia
arrest of eggs timeline

prophase of meiosis I to metaphase of meiosis II
follicle

egg + fluid + surrounding somatic cells
number of ova during fetal life?
number of ova ovulated?
- approx 7 million
- 480
percentage of ova present at birth that will be ovulated

1%
when does completion of meiosis II in eggs occur?

after entry of sperm into egg
follicle cells
- surrounding somatic cells of ova
- some stay with egg after ovulation
- support oocyte development with factors (incl. c-Kit)
- responsible for keeping egg in arrest
age effects on eggs
- increase in nondisjunctions
- decrease in number and survival of eggs

Author

kbroady

182628

Card Set

eggs

Description

development

Updated

2012-11-09T05:40:38Z

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