The frontal plane is also known as what?

• A. Sagittal Plane
• B. Coronal Plane
• C. Transverse Plane
• D. Oblique Plane

Answer: (B)

The concept here is how anatomical planes are named and oriented. The frontal plane is the same as the coronal plane. It runs vertically from head to feet and divides the body into front (anterior) and back (posterior) parts. That alternate name is why coronal is the correct term—the two refer to the exact same plane, just with different naming conventions used in anatomy and imaging. Movements that spread the limbs away from or toward the midline (like lifting the arms to the sides) are described relative to this plane because they separate front from back.

The sagittal plane, in contrast, splits left from right; the transverse plane splits upper from lower; and the oblique plane is any angled cut that isn’t aligned with the standard vertical or horizontal directions.