News tagged with placenta
Scientists watch evolution in action
(PhysOrg.com) -- The yellow-bellied three-toed skink (Saiphos equalis) is one of only three reptiles known to have different methods of reproduction in different places. In the coastal areas of New South ...
Sep 06, 2010 |
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Scientists now able to view critical aspects of mammalian embryonic development using new technique
A novel approach in the study of the development of mammalian embryos was today reported in the journal Nature Communications. The research, from the laboratory of Professor Magdalena Zernicka-Goetz of the ...
Feb 14, 2012 |
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Discovery of plant 'nourishing gene' brings hope for increased crop seed yield and food security
University of Warwick scientists have discovered a "nourishing gene" which controls the transfer of nutrients from plant to seed - a significant step which could help increase global food production.
Jan 13, 2012 |
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Hundreds of Natural-Selection Studies Could be Wrong, Study Demonstrates
(PhysOrg.com) -- Scientists at Penn State and the National Institute of Genetics in Japan have demonstrated that several statistical methods commonly used by biologists to detect natural selection at the molecular ...
Mar 30, 2009 |
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Nanoparticles may cause DNA damage across a cellular barrier
(PhysOrg.com) -- Scientists have shown in the laboratory that metal nanoparticles damaged the DNA in cells on the other side of a cellular barrier. The research, by the University of Bristol, is published ...
Nanotechnology / Bio & Medicine
Nov 05, 2009 |
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Solving the puzzle of Henry VIII
Blood group incompatibility between Henry VIII and his wives could have driven the Tudor king's reproductive woes, and a genetic condition related to his suspected blood group could also explain Henry's dramatic ...
Mar 03, 2011 |
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Study: Mom's blood test can reveal Down syndrome
Scientists in Europe report they were able to diagnose Down syndrome prenatally by giving a simple blood test to pregnant women, an approach that might one day help them avoid the more extensive procedure used now to detect ...
Medicine & Health / Medical research
Mar 06, 2011 |
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Do we clamp the umbilical cord too soon?
The timing of umbilical cord clamping at birth should be delayed just a few minutes longer, suggest researchers at the University of South Florida's Center of Excellence for Aging and Brain Repair.
Medicine & Health / Medical research
May 24, 2010 |
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Blood pressure breakthrough holds real hope for treatment of pre-eclampsia
Scientists have discovered a mechanism which raises blood pressure in pre-eclampsia, a potentially deadly condition which occurs during pregnancy.
Medicine & Health / Medical research
Oct 06, 2010 |
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Study sheds light into the nature of embryonic stem cells
New insight into what stem cells are and how they behave could help scientists to grow cells that form different tissues.
May 25, 2010 |
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Length of pregnancy influenced by placenta structure
The nine-month pregnancy in humans is influenced by the structure of the placenta, according to new research into the evolution of reproduction in mammals which ends a 100-year mystery.
Nov 17, 2010 |
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Brooding fishes take up nutrients from their own children
In the pipefish, the male cares for the offspring. Apart from the ones he sucks the life out of. The discovery of filial cannibalism in the pipefish is now creating a stir in the research world.
Dec 08, 2009 |
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Scientists discover new source for harvesting stem cells
A groundbreaking study conducted by Children's Hospital & Research Center Oakland is the first to reveal a new avenue for harvesting stem cells from a woman's placenta, or more specifically the discarded placentas ...
Medicine & Health / Medical research
Jun 23, 2009 |
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Researchers discover biochemical weakness of malaria parasite -- vaccine to be developed
Every year, 10,000 pregnant women and up to 200,000 newborn babies are killed by the malaria parasite. Doctors all around the globe have for years been looking in vain for a medical protection, and now researchers from the ...
Jun 07, 2011 |
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Not so fast: Differences in the first embryonic cell lineage decision of mammals
New research shows that all not mammals are created equal. In fact, this work shows that the animals most commonly used by scientists to study mammalian genetics -- mice -- develop unusually quickly and may not always be ...
Feb 14, 2011 |
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Placenta
The placenta is an organ unique to mammals that connects the developing fetus to the uterine wall. The placenta supplies the fetus with oxygen and food, and allows fetal waste to be disposed of via the maternal kidneys. The word placenta comes from the Latin for cake, from Greek plakóenta/plakoúnta, accusative of plakóeis/plakoús - πλακόεις, πλακούς, "flat, slab-like", referring to its round, flat appearance in humans. Protherial (egg-laying) and metatherial (marsupial) mammals produce a choriovitelline placenta that, while connected to the uterine wall, provides nutrients mainly derived from the egg sac. The placenta develops from the same sperm and egg cells that form the fetus, and functions as a fetomaternal organ with two components, the fetal part (Chorion frondosum), and the maternal part (Decidua basalis).
For more information about Placenta, read the full article at
Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.
