Final answer:
A vertical section through the body, dividing it into anterior and posterior, is called a frontal plane (or coronal plane).
Step-by-step explanation:
A vertical section through the body, dividing it into anterior and posterior, is called a frontal plane (or coronal plane). This plane separates the belly or stomach (ventral) from the back (dorsal). Another term for this plane is the coronal plane, which comes from the Latin word for 'crown'.