Ethan from Ms Hima's class had a question about how babies grow in a mommy's tummy. We thought all of the Grade 1 students might be interested in finding out, so Nadine, Siena and Kili's mom, came in to explain to us. She brought the ultra sound photos of the baby in her tummy, as well as her other children's.
Ethan: How do babies grow in tummies?
The baby is in amniotic fluid.
How does the baby breathe?
Through the belly button. You get the nutrients and oxygen from the mom, through the umbilical cord.
Are you not hungry if the baby takes your food?
Yes, a bit hungrier. You have to eat a little more, because you are eating for both you and the baby.
Griff: Does the food go straight to the mommy?
Bad stuff gets filtered out. The nutrients go to the baby.
Siena: Why do only moms get babies?
Most species are that way, except seahorses.
Griff: Why are babies red when they come out?
That's the fluid the baby is in.
Griff: Did we all start off as this?
Yes. It's a 5 week old embryo. Twin embryos look like this. There are two sacks, and this is the yolk sack.
And this is the 7 week old embryo. This is Siena and Kili's little brother.
At 8 weeks, it is a little head and legs and arms, like a tadpole.
At 9 weeks, see how it looks more like a baby in there? At this point, you are called a fetus, no longer an embryo. And at this point your yolk sack goes away.
Your eyes don't open until after 20 weeks.
Griff: If someone cut your tummy, would they see the baby?
Yes, but they'd have to do it carefully so they don't hurt the baby.
Johnny: Do you go to sleep at that time?
They numb everything so you don't feel it.
Shotaro: When you are in a tummy, can you hear?
Yes, there is evidence you can.
So what happens when they are just about to come out? Can the baby still hear you?
Yes. I will address your question later when we get to that slide. It can hear your heartbeat and flow of fluids through your body.
There is a fist here. This is Siena and Kili, and this is their brother.
These are 14 week fetuses.
This is how doctors measure the heartbeat.
Your heart beats quickly to get oxygen from the umbilical cord.
At 14 weeks it looks like a baby already.
Shotaro: It looks like a spaceman.
Umbilical cords take toxins out of the system and the mom's system cleanses it.
Siena: Do babies have feelings when they are in your tummy?
Yes, they feel pain. And also they feel the mom's moods, research says. If the mom is happier, the baby is happier.
This is 18 weeks, looks like a person. They play a lot.
This is another one at 20 weeks. Notice the eyes are still closed. It looks like a little baby already.
This is what babies look like when they come out.
This is Siena and Kili's brother at 10 hours. The baby looks like this, except it is naked.
Babies get nutrients from their moms.
When we went back to class, we talked about how the baby is different when it comes out of the mommy's tummy.
Siena: It breathes.
Aubrey: The baby gets fed milk, until about 6 months.
Lucy: Because the baby doesn't have any teeth.
Johnny: It might eat yoghurt and things.
Aubrey: It eats baby food.
Emanie: Other food.
Minzhe: I have a baby brother. The baby brother was in my mom's tummy. Her tummy got big and she screamed.
Claire: That is good info to be a baby doctor. I'm going to be one.
Minzhe: My baby can roll over, crawl and sit and sand.
Shotaro: How old?
Minzhe: I don't know.
Arwyn: Toddlers are up to 2.
We had more questions about how babies grow outside of a mommy's tummy so we invited Minzhe's mom and baby brother to come in and talk to us.