OogenesisOogoniumPrimaryOocyte-→SecondaryOocyte-→Ovum2n:46,xx2n:46,xxn:23 xn:23 xmeiosismitosis(fetal)(puberty)(fertilization)
Oogonium Primary Oocyte Ovum mitosis meiosis 2n:46,xx 2n:46,xx n:23 x n:23 x Oogenesis Secondary Oocyte (fetal) (puberty) (fertilization)
DifferencesbetweenmeleandfemaleMaleFemaleHasstemcellsNostemcellsContinuousafterpubertyPausetwice4spermfromaspermatocyteOnly1ovumfromanoocyteEqual divisionUnequal divisionNoFunctionalmatureandcapacitation
Differences between mele and female Male Female •Has stem cells No stem cells •Continuous after puberty Pause twice •4 sperm from a spermatocyte Only 1 ovum from an oocyte •Equal division Unequal division •Functional mature and No capacitation
1.3 Functional mature and capacitationofspermFunctional mature: geting ability of forwardmovement and potential of fertilizing eggs in theepididymisCapacitation: obtaining capacity of fertilizing anegg in the female reproductive tract throughremoval ofaglycoproteincoatfromtheplasmamembrane of the acrosomal region by enzyme(b-amylase)
• Functional mature: geting ability of forward movement and potential of fertilizing eggs in the epididymis • Capacitation: obtaining capacity of fertilizing an egg in the female reproductive tract through removal of a glycoprotein coat from the plasma membrane of the acrosomal region by enzyme (b-amylase). 1.3 Functional mature and capacitation of sperm
2. Fertilization to lmplantation(1st Week)an2.1Fertilizationandn--union of a spermoocyte to form a fertilized egg (zygote)2.1.1 Time: 12 - 24 hours after ovulation2.1.2 Site: ampulla of uterine tube.Corpus luteum12-24.hoursGraafianfollicleMyometrium-PerimetriumFimbriaEndometrium(progestationalstage)
2. Fertilization to Implantation (1st Week) 2.1 Fertilization - union of a sperm and an oocyte to form a fertilized egg (zygote) 2.1.1 Time: 12 - 24 hours after ovulation. 2.1.2 Site: ampulla of uterine tube
2.1.3 Process
2.1.3 Process