Any part of the brain that is thinking requires more oxygen, which is carried to the brain cells by hemoglobin.… [During the fMRI] the computer colors in the brain regions receiving more oxygenated blood and locates the activated brain region to within one centimeter (half inch).8 According to Sousa, neurons are the “functioning core of the brain.” They carry electrical impulses along the neuro pathways (axons) to branch-like structures (dendrites), which then transmit the impulses across a space
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