4-5 res/index.html Lesson 3 - Directional Terms part 2 Directional Terms - Proximal & Distal part 1 Directional Terms - Proximal & Distal part 2 Directional Terms - Proximal & Distal part 3 Directional Terms - Superior & Inferior Directional Terms - Cephalic & Caudal Directional Terms - Superificial & Deep Directional Terms - External & Internal