An expecting parent may feel their unborn baby kicking, rolling over, and hiccupping during the second trimester. Is it known if babies can start crying before they are born?
Although pregnant people can't feel this movement, research suggests that babies do seem to start practicing for this big birth milestone before they've taken their first gulp of air.
Fetals can be seen inside the uterus with the help of oos technologies. A video in the Archives of Disease in Childhood - Fetal and Neonatal Edition shows a fetus making facial expressions that look like they are crying.
After the researchers gave the fetus noise and vibration stimulation, it opens its jaw wide and lets out three big exhales as its chest rises and its head tilts back, ending with a chin quiver. The movement was seen in 10 fetuses, which is about 6 percent of the total number of babies scanned.
The Fetal and Neonatal was written by Gingras and her team.
Crying signals were identified in a 2005 study.
What happens when a baby takes its first breath?
Was the fetus crying in the womb? It depends on how you define crying.
"If you use the definition of a loud shout or scream expressing a powerful feeling or emotion, then you can say that babies don't cry in the womb," said a psychologist at Durham University in the UK.
In theamniotic sac, the fetus can't take in a big breath, fill their lungs or vibrate the air through their vocal cords, so they need to wait for the first visit to the outside world.
The facial expressions of the fetus in the second and third trimesters can be analyzed by watching the movements of the fetus in the 3D movies of fetal actions.
The "cry-face-gestalt" and the "laughter-gestalt" are examples of facial expressions that may be related to facial expressions used outside the womb.
Reissland et al. are part of a group.
The 'cry' face of a fetus is included in the images.
The facial expressions develop around 24 to 35 weeks. The motions are too subtle to be felt by the pregnant parent.
The fetus seems to be practicing the facial movements of crying before birth, so that when they take their first breath, they will be able to make a long-awaited wail.
It's not possible to know if they're vibrating the vocal cords or trying to make sounds in the uterus. It wouldn't be strong enough to travel through theamniotic fluid and the mother's body.
We don't know if the crying motions are linked to the fetus or not. The facial expressions the fetuses showed were not stimulated by the researchers.
The facial expressions of the parent and child are important in bonding. The facial muscles may be a kind of trial run for the baby's facial muscles, and this practice in the womb may help the baby bond with others.
The goal of studying these facial expressions is to help researchers find a tool for identifying health problems in pregnant women. A fetus with a health issue might not show these facial expressions at the same time as a healthy fetus.
The development of full facial expressions is learned in the social context of interacting with people. Babies don't start smiling until eight weeks of age, and those precious baby giggles don't come until four to six months of age.
Babies don't cry with tears until around four weeks after birth, because their tear ducts are immature.
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The article was published by Live Science. The original article can be found here.
