News tagged with reproductive biology
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 |
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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 |
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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 |
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Early menopause in mice: A model of human POI
(Medical Xpress)—Scientists have established a genetic mouse model for primary ovarian insufficiency (POI), a human condition in which women experience irregular menstrual cycles and reduced fertility, ...
Genetics
Aug 30, 2012 |
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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 |
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Embryo-analysis technique may boost in vitro fertilization success
(Medical Xpress)—Stanford University School of Medicine researchers have devised a two-part approach to identify developing human embryos most likely to result in successful pregnancies. The technique could transform the ...
Obstetrics & gynaecology
Dec 05, 2012 |
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Cut calories, increase egg quality: Study suggests new strategy to prevent infertility, birth defects
(Medical Xpress) -- A strategy that has been shown to reduce age-related health problems in several animal studies may also combat a major cause of age-associated infertility and birth defects. Investigators from Massachusetts ...
Medical research
Jul 07, 2011 |
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Scientists find link between immune system suppression, blood vessel formation in tumors
Targeted therapies that are designed to suppress the formation of new blood vessels in tumors, such as Avastin (bevacizumab), have slowed cancer growth in some patients. However, they have not produced the dramatic responses ...
Cancer
Jul 13, 2011 |
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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 |
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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 |
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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 |
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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 |
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Researchers find multiple tests needed to detect infection in low birth-weight newborns
New research by Case Western Reserve University School of Dental Medicine and Yale University School of Medicine finds that cultures commonly used to detect bacterial infections in low birth-weight newborns with early onset ...
Pediatrics
Feb 20, 2013 |
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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 |
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Genetic markers may help predict fertility decline in women
(Medical Xpress) -- Researchers at the Stanford Institute for Stem Cell Biology and Regenerative Medicine have discovered genetic markers that may ultimately allow women to track and predict declining fertility.
Obstetrics & gynaecology
Mar 27, 2012 |
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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.
