Animal Behavior College Externship Practice Test 2026 - Free ABC Externship Practice Questions and Study Guide

Understanding combining forms in anatomy: bucc(o) denotes the cheek. This root comes from Latin bucca meaning cheek and appears in terms like buccal mucosa (the lining of the cheek) or buccal administration (placing a medicine between the cheek and gum). It does not refer to the mouth as a whole (that would be oro- or oral-), the jaw (mandibul/o, gnath/o), or the lips (labio-/labi-). So the correct area is the cheek.