What is the combining form for esophagus?

The combining form for esophagus is "esophag/o." In medical terminology, combining forms are used to create terms related to specific anatomical structures or functions. The suffix "-o" in "esophag/o" allows it to be combined with other word parts to form terms such as “esophagitis” (inflammation of the esophagus) or “esophagography” (a procedure to image the esophagus).

The other options represent different anatomical structures or regions. "Tars/o" refers to the tarsal bones in the ankle, "lapar/o" pertains to the abdomen, and "ventr/o" indicates a position toward the belly. Therefore, these combining forms are not relevant to the esophagus, reinforcing that "esophag/o" is indeed the correct choice for representing the esophagus in medical terminology.