How do babies breath when they r in the womb of the mother.?
606808
ambilical cord supplies all the needed oxogen and food.
1177658
breathing is just lungs.  respiration has to do with the blood getting oxygen.\n\nand there are 2 types of respiration too.  one with chemistry.  not sure about that one.
94016
The baby is probably just pressing on that side. There isn't that much room in there you know.   The little bugger is already being a pain!  LOL   Just kidding.  My son used to make me so uncomfortable because he'd move around so much and it was like he was stretching out.  I'd see his foot or hand pressing out.  It was kinda gross, and really uncomfortable.  And he kicked all the time.  Later in the pregnancy he pressed on my bladder alot.
365907
some babies just don't have enough body fat to maintain their  heat. this might point to a problem with the baby's metabolism, or a problem the mom had during pregnancy.
183642
Infants have a very tough time thermoregulating themselves. They don't shiver right away and they don't sweat. Therefore they have problems keeping warm and Keeping cool. So they require their parents to dress them appropriately for the weather to help them out with this.
231274
Because the baby is pushing down on your abdomen, bringing pressure on your stomach and lungs..
828981
Respiration is achieved through the mouth, nose, trachea, lungs, and diaphragm. Oxygen enters the respiratory system through the mouth and the nose. The oxygen then passes through the larynx (where speech sounds are produced) and the trachea which is a tube that enters the chest cavity. In the chest cavity, the trachea splits into two smaller tubes called the bronchi. Each bronchus then divides again forming the bronchial tubes. The bronchial tubes lead directly into the lungs where they divide into many smaller tubes which connect to tiny sacs called alveoli. The average adult's lungs contain about 600 million of these spongy, air-filled sacs that are surrounded by capillaries. The inhaled oxygen passes into the alveoli and then diffuses through the capillaries into the arterial blood. Meanwhile, the waste-rich blood from the veins releases its carbon dioxide into the alveoli. The carbon dioxide follows the same path out of the lungs when you exhale. \n\nThe diaphragm's job is to help pump the carbon dioxide out of the lungs and pull the oxygen into the lungs. The diaphragm is a sheet of muscles that lies across the bottom of the chest cavity. As the diaphragm contracts and relaxes, breathing takes place. When the diaphragm contracts, oxygen is pulled into the lungs. When the diaphragm relaxes, carbon dioxide is pumped out of the lungs. \n\nThese links should help.
109420
i dont no about perfumes but babies can dectect their mothers scent once they are born
307470
an explanation to the mother/child thing please.
361214
I don't know as for pigs specifically but the circulatory systems of most mammals should be broadly similar - there will merely be small differences in the structure of the haemoglobin between individual species. The main differences between foetal and normal circulatory systems have to do with the placental route, as the position of the components of the vascular system will be the same as postnatal. The placenta is the organ which allows oxygen from the mother's blood to pass through into the foetal blood, and waste products such as CO2 to pass from the foetal blood back into the mother's blood. It has a good blood supply and is attached to the uterine wall. It will come out as afterbirth at the end of labour. \n\nSo, when the mother's blood flows into the placenta it is oxygenated. The maternal and foetal blood does not mix but comes into contact on either side of a thin membrane which is oxygen permeable. The only way that the foetus is able to grab the oxygen from the maternal blood is because it has a special kind of haemolglobin, foetal haemoglobin (HbF) with a higher affinity for oxygen than adult haemoglobin (you might see some oxygen dissociation curves on this - the normal line should be shifted to the left). It also has a lower affinity for CO2. Therefore the HgF is able to 'grab' oxygen and release CO2 to the maternal HgA (adult).\n\nOnce the HgF has become oxygenated in the placenta it travels through the umbilical cord (which has two separate blood vessels, one from foetus to placenta, and one from placenta to foetus) and into the foetal blood stream. The main difference once inside the foetus itself is that when the blood travels through the heart it goes through a hole between the right atrium and left atrium called the foramen ovale and (mostly) does not pass through the ventricles. This hole mostly closes up just before birth (ie in the last few weeks of pregnancy) but in some babies this process is incomplete, leading hole-in-the-heart syndrome. This hole only occurs because the greater pressure caused by pumping through the ventricles is not needed in the smaller body of the foetus. Apart from that, the rest of the foetal circulatory system is pretty much the same as the adult, just smaller (obviously).\n\nAfter birth, the gene coding for HgF will be switched off and the instead HgA will be produced, allowing for the new demands of respirating autonomously.\n\nI did a quick search to see if there was a useful website to help you. I cite this below. It has some nice diagrams.
715627
It doesn't when you're giving birth !!!!!!!  You get high on it to dull the pain and it's a great relief!!\n\nJust check out Nitrous Oxide in Wiki..
50540
With a full term pregnancy running 40 weeks or thereabout, 34 weeks is a little early & still considered pre-term & therefore a risk to mom & baby.\nThat's a bit too early & the babys' lungs may not be manufacturing surfactant at that point, which would allow it to breathe on its own outside the womb. They can test for surfactant. They can also give you drugs to stop the premature labor. Good luck -
1172366
The mattress where the baby lies is completely enclosed by a clear plastic canopy. The temperature in the incubator is increased by a heater element below the mattress. A motor driven fan near the heater draws in fresh air through a filter and blows it past the heater, warming the air. The air is directed up through slots into the area above the mattress and circulated around. The air temperature is monitored by temperature sensors and is adjusted by controlling the current to the heater. The incubator can also monitor the baby’s skin temperature by using a skin temperature probe, which is stuck onto the skin. The user can either set the incubator to control the temperature of the air or to control the temperature of the baby’s skin (servo control mode). Supplementary oxygen can be taken in by an oxygen inlet connection where it is mixed with the fresh air through the filter. The humidity can be increased by the use of water baths (passive humidification) or by dripping water on a heated element (active humidification). The baby is cared for through special access doors called arm ports.
523922
When they are a fetus... I am a medical student!!!!
1067537
There's a special place inside the mother called a womb.  (No, it's not a womb with a view; you can't see inside, and the baby can't see out.)  When circumstances are just right, the father plants his seed (one that grows inside his body) inside Mommy's body, and it grows in her womb.  It takes nine months, but eventually the baby is so large it just pushes its way out, to get more room to grow.  Mommy needs help from a midwife or a doctor for that, because there are things that can go wrong, and she can't see the place where the baby comes out.  (It's down there inside her panties.)\n\nIs that good enough?  Or do you have more questions?
535143
Yes, they make breathing motions, crying motions, swallowing, sucking, etc.\n\nThey can't make the sound because sound is caused by the vibration of vocal cords as air passed over them.  There is no air in the respiratory system yet so they can't make a noise.
535356
for short: egg-embryo-tadpole-froglet-frog.\n\nthey start breathing air as soon as they hatched from eggs. the tadpoles breathe with external gills, like salamanders. when they changed into froglet, the gills will start to disappear because at the same time, their external lungs will be developed enough to help them breathe.