The cells that will make up all of our baby's body parts and systems are dividing furiously as his body begins to take shape. Right now he's about the size of a small lentil bean (4 to 5 millimeters across). If you could see through your uterine wall, you'd find an overlarge head and dark spots where his eyes and nostrils are beginning to take shape. Shallow pits on the sides of his head mark her developing ears, and his arms and legs appear as protruding buds. His hands and feet look like paddles, with thick webbing between the developing digits, but her fingers and toes will soon become more distinct. Below the opening that will later be our baby's mouth, there are small folds where her neck and lower jaw will eventually develop. (Inside, her tongue and vocal cords are just beginning to form.)
Our baby's heart (which is starting to divide into the right and left chambers) is beating about 100 to 130 beats per minute — almost twice as fast as ours — and blood is beginning to circulate through her body. His intestines are developing and tiny breathing passages are beginning to appear where his lungs will be. He's also starting to build muscle fibers and, halfway through this week, he'll likely start moving his tiny limbs. Unfortunately, you'll probably have to wait until we're several weeks into our second trimester before we get to enjoy feeling our baby's calisthenics. Source: babycenter.com
No comments:
Post a Comment