What is the combining form that indicates the front of the body?

The combining form that indicates the front of the body is "Anter/o." This term is derived from the Latin word "anterior," which means front or toward the front. In medical terminology, "anter/o" is often used to describe structures that are located toward the front side of the body in relation to other structures. For example, the anterior aspect of the body is the part that faces forward when in the standard anatomical position.

The other choices represent different anatomical terms. “Thorac/o” relates to the chest area, “Gynec/o” pertains to women or female reproductive systems, and “Neur/o” involves nerves or the nervous system. While these terms are significant in their respective contexts, they do not describe the frontal aspect of the body.