![]() ![]() Your baby’s brain continues to develop in the coming weeks, endowing him with a remarkable range of involuntary movements like stretching, yawning and sucking by the end of the first trimester and more coordinated movements in the second trimester. By week 8, electrical activity begins in the brain - allowing your baby to coordinate his first (spontaneous) movements that doctors can even see on an ultrasound! The first synapses in baby’s spinal cord form during week 7 of pregnancy. Also at about week 5 of pregnancy, the neural plate folds onto itself to form the neural tube, which closes by about week 6 of pregnancy to eventually become the brain and spinal cord.īy about week 10, the brain is a small, smooth structure that looks a whole lot more like the brain you’re used to (minus the folds that make up the various brain regions, which develop later in pregnancy). ![]()
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