___________ are used to examine the gross structure of the brain.

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CT scans (computed tomography) use X-rays to produce detailed images of cross-sections of the brain. This is a useful tool for examining the structure of the brain, but not for examining its function. EEGs (electroencephalograms) measure electrical activity in the brain and can be used to study brain function. PET scans (positron emission tomography) and MRIs (magnetic resonance imaging) are also used to study brain function, but they are more expensive and have different strengths and limitations compared to CT scans.

___________ Are Used to Examine the Gross Structure of the Brain