What is the name of the plane that divides the body into anterior and posterior portions?

The correct identification of the plane that divides the body into anterior (front) and posterior (back) portions is the frontal plane. This anatomical plane runs vertically from side to side and provides a clear distinction between the front and back halves of the body, facilitating the study and description of body structures and their relationships in anatomy.

The sagittal plane, in contrast, divides the body into left and right portions, making it less relevant when discussing anterior and posterior aspects. The transverse plane (also known as the horizontal plane) divides the body into superior (upper) and inferior (lower) portions and does not differentiate between the front and back.