At the end of this week the embryo will be still smaller than the size of a raisin. Low on the sides of the head are two folds of tissue that will become the ears. Although not completely developed, all the major body organs and systems will be formed. The heart also forms, and it begins to beat about 6 weeks after the last menstrual period, and a heart beat will be able to be detected.The neural tube enlarges into three parts, that will soon to develop to become a very complex brain. Also the placenta begins functioning, known as the chorionic villi and the umbilical cord, through which the baby will receive nourishment and oxygen. The spine and spinal cord grows faster than the rest of the body at this stage and will give the appearance of a tail. This will disappear as the baby continues to grow. Wow. Looks like we have a long week ahead of us! Just keep doing what your doing little one!
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