Sagittal Plane is a vertical plane that separates the body into right and left portions and does not distinguish equal from unequal.

• A. Sagittal Plane
• B. Frontal Plane
• C. Transverse Plane
• D. Horizontal Plane

Answer: (A)

The sagittal plane is a vertical plane that runs from front to back and divides the body into right and left portions. An important nuance is that only the midsagittal (midline) plane creates equal right and left halves; any other sagittal plane passes to one side of the midline and yields unequal portions. So the description fits the sagittal plane because it specifies a vertical plane that partitions the body into right and left, with equality depending on whether you’re at the midline. In contrast, a frontal (coronal) plane separates front and back parts, a transverse (horizontal) plane separates upper and lower parts, and the term horizontal plane is another way to say transverse.