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Week-by-Week Fetal Development Week 7 The embryo is now a full-fledged fetus, which means 'young one'. Its brain and spinal cord is almost close to completion. A sonography will clearly reveal the arms and legs with clefts at the ends that ultimately form the toes and fingers. The baby is beginning to achieve its eventual human shape even though its head is still lumpy and bent forward on the chest. The face is beginning to form but the eyes are on the side of the head and are as yet unopened but you can see the black pigmentation under the skin covering the eye- lids. The ears are also developing and you can see two holes, which will take the final shape of the nose. The mouth and jaws have taken better shape now and you can actually make out the shape of the lips, tongue and initial teeth buds. The heart has developed two more chambers and has begun to circulate blood all throughout the little one's body that has already formed a complex network of blood cells. Your baby's nervous system is fast developing and the fetus has begun to form a liver, kidneys, lungs, an intestine and internal sex organs. The bone cells are also beginning to develop.
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