[[Image:Human_placenta_baby_side.jpg|thumb|400px|Human placenta shown a few minutes after birth. The side shown faces the baby with the umbilical cord top right. The unseen side connects to the uterus wall. The white fringe surrounding the bottom is the remnants of the amniotic sac.]] The placenta is an ephemeral (temporary) organ present only in female marsupial and Placentalia mammal during gestation (pregnancy). The placenta is composed of two parts, one of which, the chorion, is genetically and biologically part of the fetus, the other part of the mother. It is implanted in the wall of the uterus, where it receives nutrients from the mother's blood and passes out waste. This interface forms a barrier, the placental barrier, which filters out many substances which could harm the fetus. However, many other substances are not filtered out, including alcohol. Most viruses also easily cross this barrier. The placenta is connected to the fetus via the umbilical cord which is composed of blood vessels and connective tissue. When the fetus is delivered, the placenta is delivered afterwards (and for this reason is often called the afterbirth). After delivery of the placenta the umbilical cord is usually clamped and severed or may be left attached to fall off naturally which is referred to as a Lotus Birth. In most mammalian species, the mother bites the cord and consumes the placenta. The site of the former umbilical cord attachment in the center of the front of the abdomen is known as the umbilicus, or navel, or belly-button. The only non-placental mammals are the monotremes, which are egg-laying mammals only found in Australia and New Guinea, and the marsupials, which are found primarily in Australia, both of which represent earlier branching of the basal mammalian lineage. == See also == * Placentophagy Developmental biology
==chorion and ???== The article says the chorion is the part of the placenta that is genetically part of the fetus, but it doesn't give the name of the other part, the part that is genetically part of the mother. Adding that, I think, would be an improvement. -- User:Finlay McWalter 01:17, 20 Jan 2004 (UTC) ==Culture?== I've heard from time to time things about what's done with the placenta in various cultures after it is expelled. Could someone who knows about this add some info? Thanks. User:Dcoetzee 03:04, 28 Mar 2005 (UTC) :Some people get rather silly with it. They bury it under a seedling tree or use it to make a placenta print (art, using blood as ink or with regular ink). More practical and very unsqueamish people just Placentophagy. The b:Main_page b:Cookbook has b:Cookbook:Placenta. User:AlbertCahalan 22:16, 23 May 2005 (UTC) :I know of people in Indian villages placing the placenta of cows in a box made with palm leaves and hanging them from the branches of banyan trees to protect them from dogs, which they fear might harm the cow or its calf if they get the smell of the placenta. -- 04:34, May 24, 2005 (UTC) == another culture == in our culture, as luslim in malaysia we wash clean the placenta and then buried it. what we believed as because it is also part of our baby's life == Abruption of placenta == *Reason for the abruption? *Risk rate? *Prevention? *Measures taken after abruption? *Period of measures? *Risk to baby and mother? Special:Contributions/61.2.235.19 This is very rare. In the unlikely event that it happens, you have serious problems. Why it happens: *40% of cases linked to high blood pressure or preeclampsia *physical trauma (car accident, severe beating, fall from ladder) *smoking *pitocin-induced labor *twin has been born, and maybe nursing *entanglement of the cord Prevention: Don't be a smoker with high blood pressure who gets in a car crash. Don't induce labor. If it happens and the baby isn't about to be delivered, treat for shock and get to a hospital. Probably you'll get a cesarean. Risk of the abruption is that the mother bleeds to death and the baby goes without oxygen. Probably the baby can bleed to death too. Risk of the measures (cesarean) is of course the normal: infection or bleeding, resulting in loss of the uterus or death. Do remember that all this is highly unlikely. User:AlbertCahalan 05:52, 7 Jun 2005 (UTC)
See other meanings of words starting from letter:
Words begining with Placenta:
Placenta
Placenta
Placental
Placentalia
Placentalia
Placentalia-Marsupialia_or_Eutheria-Metatheria
Placentalia-Marsupialia_or_Eutheria-Metatheria?
Placentals
Placental_abruption
Placental_mammal
Placental_mammals
Placental_sulfatase_deficiency
Placenta_bag
Placenta_cloth
Placenta_creta
Placenta_praevia
Placenta_previa
Placenta
[[Image:Human_placenta_baby_side.jpg|thumb|400px|Human placenta shown a few minutes after birth. The side shown faces the baby with the umbilical cord top right. The unseen side connects to the uterus wall. The white fringe surrounding the bottom is the remnants of the amniotic sac.]] The placenta is an ephemeral (temporary) organ present only in female marsupial and Placentalia mammal during gestation (pregnancy). The placenta is composed of two parts, one of which, the chorion, is genetically and biologically part of the fetus, the other part of the mother. It is implanted in the wall of the uterus, where it receives nutrients from the mother's blood and passes out waste. This interface forms a barrier, the placental barrier, which filters out many substances which could harm the fetus. However, many other substances are not filtered out, including alcohol. Most viruses also easily cross this barrier. The placenta is connected to the fetus via the umbilical cord which is composed of blood vessels and connective tissue. When the fetus is delivered, the placenta is delivered afterwards (and for this reason is often called the afterbirth). After delivery of the placenta the umbilical cord is usually clamped and severed or may be left attached to fall off naturally which is referred to as a Lotus Birth. In most mammalian species, the mother bites the cord and consumes the placenta. The site of the former umbilical cord attachment in the center of the front of the abdomen is known as the umbilicus, or navel, or belly-button. The only non-placental mammals are the monotremes, which are egg-laying mammals only found in Australia and New Guinea, and the marsupials, which are found primarily in Australia, both of which represent earlier branching of the basal mammalian lineage. == See also == * Placentophagy Developmental biology
Placenta
==chorion and ???== The article says the chorion is the part of the placenta that is genetically part of the fetus, but it doesn't give the name of the other part, the part that is genetically part of the mother. Adding that, I think, would be an improvement. -- User:Finlay McWalter 01:17, 20 Jan 2004 (UTC) ==Culture?== I've heard from time to time things about what's done with the placenta in various cultures after it is expelled. Could someone who knows about this add some info? Thanks. User:Dcoetzee 03:04, 28 Mar 2005 (UTC) :Some people get rather silly with it. They bury it under a seedling tree or use it to make a placenta print (art, using blood as ink or with regular ink). More practical and very unsqueamish people just Placentophagy. The b:Main_page b:Cookbook has b:Cookbook:Placenta. User:AlbertCahalan 22:16, 23 May 2005 (UTC) :I know of people in Indian villages placing the placenta of cows in a box made with palm leaves and hanging them from the branches of banyan trees to protect them from dogs, which they fear might harm the cow or its calf if they get the smell of the placenta. -- 04:34, May 24, 2005 (UTC) == another culture == in our culture, as luslim in malaysia we wash clean the placenta and then buried it. what we believed as because it is also part of our baby's life == Abruption of placenta == *Reason for the abruption? *Risk rate? *Prevention? *Measures taken after abruption? *Period of measures? *Risk to baby and mother? Special:Contributions/61.2.235.19 This is very rare. In the unlikely event that it happens, you have serious problems. Why it happens: *40% of cases linked to high blood pressure or preeclampsia *physical trauma (car accident, severe beating, fall from ladder) *smoking *pitocin-induced labor *twin has been born, and maybe nursing *entanglement of the cord Prevention: Don't be a smoker with high blood pressure who gets in a car crash. Don't induce labor. If it happens and the baby isn't about to be delivered, treat for shock and get to a hospital. Probably you'll get a cesarean. Risk of the abruption is that the mother bleeds to death and the baby goes without oxygen. Probably the baby can bleed to death too. Risk of the measures (cesarean) is of course the normal: infection or bleeding, resulting in loss of the uterus or death. Do remember that all this is highly unlikely. User:AlbertCahalan 05:52, 7 Jun 2005 (UTC)
See other meanings of words starting from letter:
P
PA | PB | PC | PD | PE | PF | PG | PH | PI | PJ | PK | PL | PM | PN | PO | PR | PS | PT | PU | PW | PX | PY | PZ |Words begining with Placenta:
Placenta
Placenta
Placental
Placentalia
Placentalia
Placentalia-Marsupialia_or_Eutheria-Metatheria
Placentalia-Marsupialia_or_Eutheria-Metatheria?
Placentals
Placental_abruption
Placental_mammal
Placental_mammals
Placental_sulfatase_deficiency
Placenta_bag
Placenta_cloth
Placenta_creta
Placenta_praevia
Placenta_previa
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