13-1 res/index.html Chapter 13: The Digestive System - Slide Intro Lesson 1: Associated Combining Forms of the Upper GI Tract - Slide Intro Overview of the Digestive System Organs Combining Forms: Mouth Combining Forms: Lips & Tongue Combining Forms: Teeth & Gums Combining Forms: Saliva, Salivary Gland & Pharynx Combining Forms: Esophagus & Stomach