Which plane divides the body into left and right halves?

• A. Frontal plane
• B. Medial
• C. Sagittal plane
• D. Lateral

Answer: (C)

The main idea here is how the body is divided by planes. The sagittal plane runs vertically from front to back and splits the body into left and right portions. If the cut reaches the midline, it creates equal left and right halves—this is often called the median or mid-sagittal plane, but the general division into left and right is defined by the sagittal plane. The frontal (coronal) plane would separate front from back, and terms like medial and lateral describe directions relative to the midline, not a plane itself. So the plane that divides the body into left and right parts is the sagittal plane.