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Dictionary » S » Semen

Semen

semen

(Science: biology) ejaculate. The fluid released at orgasm which contains sperm and secretions from the prostate gland. The thick white fluid containing spermatozoa that is ejaculated by the male genital tract.The liquid like substance that is ejaculated from the penis containing the sperm gametes capable of fertilising with the female egg [[gamete.


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Transmission of HIV by sexual contact

It also depends upon gender. Passage from men to women does not depend on direct blood access (virus in semen can get into lymph drainage once they are far enough into the system), but passage from women to men does require some sort of lesion for access. Men-to-men does not ...

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by Darby
Tue Jul 24, 2012 2:24 pm
 
Forum: General Discussion
Topic: Transmission of HIV by sexual contact
Replies: 4
Views: 1644

What colour do sem*n stains glow under a black light?

Do anybody know what colour does semen stains glow under a black light (uv light)? Blue or Yellow ? Would it affected by the wavelength of the black light? How about a 300-400nm(wavelength) black light? Thanks.

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by endallpains
Tue May 29, 2012 6:05 pm
 
Forum: Human Biology
Topic: What colour do sem*n stains glow under a black light?
Replies: 3
Views: 1227

Re: How long can they live outside the body?

While sperm can survive in the male reproductive tract several weeks, but in the semen of after ejaculation at most only live in 24 to 72 hours. But if the temperature drop, semen can be stored a few weeks; If use liquid nitrogen freezing, long-term sperm or even ...

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by lucy520
Wed Feb 29, 2012 8:28 am
 
Forum: Cell Biology
Topic: How long can they live outside the body?
Replies: 2
Views: 1253

embryology and religion

... then We clothed the IDHAAM with LAHM (flesh, muscles), then We caused him to grow and come into being as another creation. drop = liquid of semen alaqah = leech mudgah= chewed substance idhaam = bones lahm = meat,flesh So the stages start from the drop of semen which became as leech then ...

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by factsfinder
Mon Jan 16, 2012 10:21 pm
 
Forum: Human Biology
Topic: embryology and religion
Replies: 9
Views: 1796

detection of semen or spermatozoa

Are there known molecular mechanisms in females for the detection of semen or spermatozoa -besides the ovum itslef. So basically, are there mechanisms which detect the presense of either semen or spermatozoa even though fertilization might not occur.

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by mzoltan22
Sun Jul 17, 2011 10:10 am
 
Forum: Human Biology
Topic: detection of semen or spermatozoa
Replies: 0
Views: 708
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