The brain of a human and that of a chimp are not the same. In one MRI study (Rilling & Insel, 1999) it was reported that the human brain is 3.4 times bigger than expected from the relationship...
They give your Brian signals and visversa with out them you couldn't fell anything witch in turn is bad due you couldn't fell if yu burnt ur finger bad or if you had say a broken arm( you could see...
The nervous system maintains homeostasis by monitoring changes in the body and initiating responses to those changes. It is able to perform this important function by its ability to perceive stimuli...