How do they look at a brain and know that if they cut this tiny section they could cut off fine motor control, and this section is responsible for memories, etc. It all looks the same!
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What we call “brain surgery” is the medical field of “neurosurgery”. It’s one of the most difficult and rewarding medical specialty.
It deals with the the **Nervous System**, the spinal cord and of course the brain. To become a Neurosurgeon, first you need to do a “normal” medical school,
then practice for a couple of years, and then training for another 8 YEARS (in UK ) .
Many advances in this field come from direct experience in recording brain injuries, noting how precise part of the brain control certain body organs or muscle movement.
So, it’s this collected medical history of evidence, years of hard hard study and exceptional skills that let a neurosurgeon decide what he can and cannot cut or stimulate.
It should be noted the “everything looks the same” is true for most surgeries. Once you cat the first layer of skin/fat, everything is red. 😉
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