At 6 weeks, the fetus undergoes many changes and it is less than half an inch in length. Neural tube of your fetus will start forming at this point of time, which will help in the formation of brain, spinal cord, nerves, and spine. The arm and leg buds will start appearing and a C-shaped body will form along with a large head.
The trachea, larynx, and bronchi will also form and the heart will get divided into four chambers and blood will start pumping through them. When it comes to the formation of facial features of your little one, then eyes, ears, nose, jaw, cheeks and chin will form. The heart of the fetus at this stage will start beating at 150-160 beats per minute, twice as fast as an adult’s heartbeat.
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