How does the brain develop in a normal male fetus?
All males start out as female embryos. However, somewhere between the 8th week to the 24th week a change to male occurs if the chromosomes are ‘XY’. They ‘XY’ chromosomes cause Testosterone to be produced and released by the body in the fetus body. In the fetal brain this testosterone is converted into a type of estrogen which masculinizes the male brain. The hormonal washed must be very precisely timed for this process to be successful. How does the brain develop in a normal female fetus? All female fetuses start out as female embryos. The ‘XX’ chromosomes order no hormonal wash to occur. The fetus, not touched by testosterone, remains female, both in body and brain. Transsexual Brain Development How does the MtF Transsexual? Like the normal male embryo, the male to female Transsexual brain starts out female. Then between the 8th and 24th weeks, the ‘XY’ chromosomes introduce testosterone hormonal changes, but the hormonal washes as faulty. They are either insufficient or ill timed. W
