News tagged with reproductive biology
New findings provide insight on long-standing pregnancy mystery
Researchers at NYU School of Medicine have made an important discovery that partially answers the long-standing question of why a mother's immune system does not reject a developing fetus as foreign tissue.
Medical research
Jun 07, 2012 |
5 / 5 (7) |
0
|
Sperm crawl and collide on way to egg, researchers say
Scientists at the Universities of Birmingham and Warwick have shed new light on how sperm navigate the female reproductive tract, 'crawling' along the channel walls and swimming around corners; with frequent collisions.
Medical research
May 07, 2012 |
4.8 / 5 (5) |
1
|
Scientists isolate egg-producing stem cells from adult human ovaries
For the first time, Massachusetts General Hospital (MGH) researchers have isolated egg-producing stem cells from the ovaries of reproductive age women and shown these cells can produce what appear to be normal egg cells or ...
Medical research
Feb 26, 2012 |
5 / 5 (4) |
1
|
Finger ratio points to penile length
The ratio between the second and fourth digits is linked to stretched penile length according to a study published online this week in Asian Journal of Andrology. This finding suggests that digit ratio can predict adult ...
Other
Jul 05, 2011 |
3.8 / 5 (4) |
5
Dioxin causes disease and reproductive problems across generations
Since the 1960s, when the defoliant Agent Orange was widely used in Vietnam, military, industry and environmental groups have debated the toxicity of its main ingredient, the chemical dioxin, and how it should be regulated.
Medical research
Sep 26, 2012 |
5 / 5 (3) |
0
|
Ultrasound male contraceptive, overlooked for decades, confirmed to work
Imagine a contraceptive that could, with one or two painless 15-minute non-surgical treatments, provide months of protection from pregnancy. And imagine that the equipment needed were already in physical therapists' ...
Other
Jan 30, 2012 |
5 / 5 (2) |
0
A pack of walnuts a day keeps the fertility specialist away?
A paper published 15 August 2012 in Biology of Reproduction's Papers-in-Press reveals that eating 75 grams of walnuts a day improves the vitality, motility, and morphology of sperm in healthy men aged 21 to 35.
Obstetrics & gynaecology
Aug 15, 2012 |
5 / 5 (2) |
0
Three types of fetal cells can migrate into maternal organs during pregnancy
A pregnant woman's blood stream contains not only her own cells, but a small number of her child's, as well, and some of them remain in her internal organs long after the baby is born. Understanding the origin and identity ...
Medical research
Jun 06, 2012 |
5 / 5 (1) |
0
Eunuchs outlive other men
Castrated men living in Korea centuries ago outlived other men by a significant margin. The findings, reported in the September 25 issue of Current Biology, suggest that male sex hormones are responsible for shortening the li ...
Other
Sep 24, 2012 |
5 / 5 (1) |
2
Preterm labor powerhouse therapy offers promise for inflammatory diseases
Magnesium sulfate is given to many pregnant women to treat preterm labor and preeclampsia and was recently shown to prevent cerebral palsy; however little is known about how it works. Researchers at Case Western Reserve University ...
Inflammatory disorders
Oct 09, 2012 |
5 / 5 (1) |
0
|
Whole genome sequencing of de novo balanced rearrangements in prenatal diagnosis
Whole genome sequencing of the DNA code of three prenatal samples provided a detailed map of the locations of their chromosomal abnormalities in 14 days, scientists reported today at the American Society of Human Genetics ...
Genetics
Nov 07, 2012 |
5 / 5 (1) |
0
|
Sex organ
A sex organ, or primary sexual characteristic, as narrowly defined, is any of the anatomical parts of the body which are involved in sexual reproduction and constitute the reproductive system in a complex organism; in mammals, these include:
The Latin term genitalia, sometimes anglicized as genitals and genital area, is used to describe the externally visible sex organs, known as primary genitalia or external genitalia: in males the penis, in females the clitoris and vulva.
The other, hidden sex organs are referred to as the secondary genitalia or internal genitalia. The most important of these are the gonads, a pair of sex organs, specifically the testes in the male or the ovaries in the female. Gonads are the true sex organs, generating reproductive gametes containing inheritable DNA. They also produce most of the primary hormones that affect sexual development, and regulate other sexual organs and sexually differentiated behaviors.
A more ambiguously defined term is erogenous zone, subjectively, any portion of the body that when stimulated produces erotic sensation, but always prominently including the genitalia.
For more information about Sex organ, read the full article at
Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.
