What accounts for more than 60% of the total bran weight?

I looked in my book and it said one part accounted for 85% and then another part said 40%. I think it's the cerebral hemispheres, but I don't know for sure.

2 answers

The Cerebral Cortex
The cerebrum or cerebral hemispheres is correct. Technically, the cortex is only the outer portion of the cerebrum, the gray matter, consisting mostly of cell bodies of neurons.

I hope this helps a little more. Thanks for asking.