Wednesday, April 1, 2009

WEEK 14: HORMONES GEAR UP


The effect of hormones becomes apparent this week. For boys, the prostate gland is developing. For girls, the ovaries move from the abdomen into the pelvis.
Meconium — which will become your baby's first bowel movement after birth — is made in your baby's intestinal tract. By the end of the week, the roof of your baby's mouth will be completely formed.
Your baby's body systems are starting to work on their own. The digestive system practices moving food along the intestines and through the renal system and he can create and eliminate urine. He also continues to practice breathing the amniotic fluid in and out of his lungs. Your baby has tiny, soft nails on his fingers and toes, is growing hair and may even suck his thumb. Your baby is approximately 10-11.5 cm (3 1/2 -4 inches) and weighs approximately 1.5 ounces.
Also, your baby's blood is beginning to form in the bone marrow and blood vessels are beginning to connect various parts of the fetus to another. The joints and muscles allow your baby full body movement so your baby is able to move around. The baby's neck is getting longer and his chin is no longer resting on his chest. The eyes and ears continue to move into place. The hands are becoming functional and reflex movements often occur. Nourishment now comes from the placenta. Remember, some of what you eat and drink is getting through to your baby. The doctor can tell if your baby is a boy or a girl using special tests.
Amniotic fluid is an amazing substance. It completely regenerates itself every three hours. We do know that it is partially composed of urine from the baby, but where amniotic fluid in general is made we are not sure. Modern medicine still has some surprises left.

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