Which plane divides the body into front and back portions?

The correct choice is the coronal plane, which is also known as the frontal plane. This anatomical plane divides the body into anterior (front) and posterior (back) sections. Understanding the role of the coronal plane is fundamental in various fields like anatomy, kinesiology, and physical training because it helps in visualizing how movements occur in relation to the body's structure.

The sagittal plane runs vertically and divides the body into left and right parts, which makes it distinct from the coronal plane. Meanwhile, the transverse plane, also known as the horizontal plane, separates the body into upper and lower sections. Therefore, although these other planes are important in understanding body movements and anatomy, they do not specifically divide the body into the front and back portions like the coronal plane does. The horizontal plane refers to a similar concept as the transverse plane and does not pertain to the division into front and back either. Thus, the distinguishing feature of the coronal plane is essential for identifying movements that occur in the anterior-posterior direction.