Wednesday, July 22, 2009

What's new with Baby Plain

Before I talk about our baby (which has been kicking up a storm tonight!), I just have to say that Josh and Katrina's baby is just so incredibly precious and beautiful! We went to visit again tonight now that things are a little more calm. Adam and I both got to hold him for at least 30 minutes each! He slept the entire time and made the cutest little cooing sounds while he did. Just precious. For more pictures of little Jack, see Katrina's Blog.

And now on to Baby Plain:

At nine inches and more than a pound and a half in weight, your baby is taller than two juice boxes stacked one on top of the other, and almost as heavy as four of those little boxes (an analogy you'll find particularly apropos in a few years, when those juice boxes start taking over your refrigerator, your pantry, your car.…).

Don't look now (as if you could), but your baby's skin is turning pinker. No, not because he or she's getting overheated (in fact, the amniotic fluid is perfectly climate controlled, keeping your baby at an always comfortable temperature), but because small blood vessels, called capillaries, are forming under the skin and filling with blood. Later this week, blood vessels will also develop in your baby's lungs, bringing them one step closer to full maturity — and one step closer to taking that first breath of fresh air. But at 25 weeks pregnant, those lungs are still very much works in progress. Though they are already beginning to develop surfactant, a substance that will help the lungs expand after the baby is born, the lungs are still too undeveloped to sufficiently send oxygen to the bloodstream and release carbon dioxide when he or she exhales.

The lungs aren't the only system that's gearing up for air intake. Your baby's nostrils, which have been plugged up until now, are starting to open this week. This actually allows your little one to begin taking practice breaths. (Of course since there's no air in there, your baby is really only "breathing" amniotic fluid, but it's the practice that counts, right?)

Hope you are all having a great week!


Jerry and Suzy said...

Nee, these stories of your baby's growth and development sure put to shame all those folks who say life doesn't begin until birth! That baby has been real, alive, developing, ever since conception.

template by - header image by Martin Walls