Which statement correctly describes the difference between a frontal (coronal) plane and a sagittal plane?

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Planes in anatomy are defined by what they separate. A frontal plane, also called the coronal plane, runs vertically from side to side and divides the body into anterior (front) and posterior (back) portions. A sagittal plane also runs vertically but divides the body into left and right portions, with a midsagittal plane splitting exactly down the midline. So the statement that best describes the difference is that the frontal plane separates front from back, while the sagittal plane separates left from right. The other options mix up the directions or claim the planes are the same.