What are the two vertical planes that are at right angles to each other?

The two vertical planes that are at right angles to each other are typically referred to as the "frontal plane" and the "sagittal plane." The frontal plane divides the body into anterior (front) and posterior (back) sections, while the sagittal plane divides it into left and right sections. Together, these planes help in understanding anatomical positions and movements in three-dimensional space.