Yes, we know that you have already noticed the disproportionate head of your otherwise small baby. Don’t worry! This is only a period of his/her development. Soon, he/she will look just like you have imagined him/her – fragile and delicate. During this week, however, the brain of your midget increases quite much and undergoes significant modifications. The expansion of the nervous tube continues being developed. As a result, the cerebral hemispheres are formed.
The primary cartilaginous tissue appears within the papillae from which the extremities grow. As well as the primary elements from which the spinal vertebrae originate.
At the end of this week, five primary facial inceptions are formed. The nice dimple that will play the role of a mouth is outlined. Now, it comprises inceptions of the two jaws – upper and lower. Papillae that put the beginning of the sense of smell also appear. The inceptions of a nose and eyes are well noticed.
The heart of the baby already beats with a rhythm that can be clearly perceived by the echography machine. During this week the size of the heart becomes double. The digestive system continues developing – the future stomach is outlined, the liver and the pancreas increase.