Is a brain-imaging technique that shows us precisely which areas of the brain are active at a particular moment in time; is a technique that shows us the exact structure of each of the brain's parts. ct; pet functional mri (fmri); mri pet; fmri angiogram; mri

The answer is "PET scan" or "PET-CT". 

PET scan or positron emission tomography uses the technology behind conventional CT scans but performs to quantify the function in specific parts of organs (i.e. brain). The patient will be given a positron emitting substance most commonly fluorodeoxyglucose or FDG via intravenous injection. After which, the patient will go to the PET machine and the PET machine will measure the positron emitted throughout the body. Positron is well correlated to the function of a specific part of an organ.

1. aspect is nothing really because the answer is right in front of your face

Molecules called lipids have long hydrocarbon chains that determine the way they act. they can be fats, oils, or hormones, and even exist in our cell membranes