|WikiProject Medicine / Reproductive medicine||(Rated C-class, High-importance)|
Want better reference
I think that the non-intercourse/non-Artificial insemination/non-IVF fertilization note is important but I haven't been able to find a better reference than this: http://www.goaskalice.columbia.edu/0116.html
Am just one man who has been very busy sometime dont have time for making love to my wife. just need to know when is the rifgt time to make love for us to get a child. i know the dates of her periods. pls help. need to schedule my self. Cornelius
about 2 weeks after the beginning of her period —Preceding unsigned comment added by 126.96.36.199 (talk) 09:22, 22 October 2009 (UTC)
This may be the wrong place for this, but how is the time between ejaculation and fertilization termed? Just another guy trying to be a Chemical Engineer, Nanobiotechnologist, and Mathematician (talk) 06:45, 20 April 2008 (UTC)
- The "Great Race"!
I don't think there is a term, since just because the male ejaculates doesn't always mean fertilization will occur. I have heard that spermatozoon can survive for up to 72 hrs in the uterus and fallopian tubes so if it doesn't find an egg by then, then there won't be a pregnancy. that's the only reference i've heard to that timespan, but i could be wrong. Someone who simply took A&P in high school 21:57, 8 December 2008
This needs to be covered, though. I came looking up "impregnation", expecting an article on that which would detail the journey of sperm to egg. There isn't any such article, nor can I find that information anywhere on Wikipedia. That's a serious major defect! —Preceding unsigned comment added by 188.8.131.52 (talk) 07:41, 8 January 2010 (UTC)
I think that the egg pulls in the sperm, rather than the sperm pushing in/penetrating the egg.  I also think that the egg can choose which sperm to let in, but I have no reference for this.
- You are wrong on both. Sperm penetrates the egg. The egg makes no decision (nor cares) what sperm cell penetrates it. He who makes it first, wins. JeremyWJ (talk) 08:56, 26 June 2009 (UTC)
No. The egg coat 'serves as a sophisticated biological security system that screens incoming sperm, selects only those compatible with fertilization and development, prepares sperm for fusion with the egg and later protects the resulting embryo from polyspermy'(Wassarman, 1988, 78-79). Paul M. Wassarman, "Fertilization in Mammals," Scientific American 259, no. 6 (December 1988): 78-84. —Preceding unsigned comment added by 184.108.40.206 (talk) 20:48, 12 January 2010 (UTC)
I removed the following tags:
The article has to be technical to a certain degree to be factual. After reading it over, I don't think it is more technical than it needs/has to be. It also appears pretty well defined, therefor not in need of an expert to add to or correct it. JeremyWJ (talk) 09:01, 26 June 2009 (UTC)
What age does the ovum develop?
- Is the ovum created at a certain age, or is it there at birth? (What age is it first possible for females to get pregnant?) --Kid Sonic (talk) 17:35, 1 June 2010 (UTC)
Three years too late, but in case anyone else had the same question; ova are not present at birth but their preceding stage/cell is. At birth females have a set number of predifferentiated cells called primary ooctyes (tmi but these cells are stuck in Prophase I). During her first menstrual cycle and for every cycle thereafter one (or more) primary oocytes will complete meiosis I in a follicle and produce a secondary oocyte which is now stuck in metapahse II. This secondary oocyte is the egg which is released into the oviduct. Once this egg is fertilized by a spermatozoa (but before a zygote is formed) the secondary oocyte completes meiosis II and becomes an ovum. When can a female first get pregnant? Whenever menarche occurs. -keyboardthegreater — Preceding unsigned comment added by Keyboardthegreater (talk • contribs) 00:02, 31 July 2013 (UTC)
This page would be greatly improved if all of the different events mentioned (fusion, cortical reaction, acrosomal reaction, etc) were dealt with chronologically. Currently it is haphazard and clearly not in order. Rchriste (talk) 07:06, 8 November 2013 (UTC)