At week 7 most of the growth is concentrated in the head as a hundred new brain cells are generated each minute.
Massive brain growth
This week, growth is concentrated in the head where new brain cells are generated at the rate of 100 per minute. As Your Baby ’s brain cells multiply, they branch out and connect, forming the first primitive pathways of the central nervous system. By the time your child is born, the brain will have more than 10 million intertwined nerve cells.
Three brain areas develop
The first part, the forebrain, is the largest section, and will later become the cerebrum, thalamus, and hypothalamus (the nerve center).
The midbrain, as the name implies, sits between the forebrain and the hindbrain. It connects to the brainstem and the spinal cord.
Finally, the hindbrain at the back of the head contains the cerebellum and other structures that control unconscious body functions, such as breathing.
Support Your Baby ’s brain!
During the critical period you can support Your Baby ’s brain development by ensuring you get your folic acids (Vitamin B12) and refrain from any alcohol or other harmful substances.
- The Brain before Birth: Using fMRI to Explore the Secrets of Fetal Neurodevelopment, EHP, (https://ehp.niehs.nih.gov/doi/full/10.1289/EHP2268 )
- Week 7: Baby's Head Develops, Mayo Clinic (https://www.mayoclinic.org/healthy-lifestyle/pregnancy-week-by-week/in-depth/prenatal-care/art-20045302 )
- Week 7, What To Expect (https://www.whattoexpect.com/pregnancy/week-by-week/week-7.aspx )