The interactive dog atlas · Exterior and regions · Head

Cheek bucca

The cheek is the lateral wall of the mouth. The back part is firm, over the masseter muscle; the front part is soft and moves together with the lips.

Educational material, not a diagnostic tool. Written by the Mantrailing România team from veterinary sources we read. Updated 14.11.2026.

Dog in left lateral view — exterior, muscles, skeleton and organs Vector study after the Ellenberger, Baum and Dittrich plates: a standing dog, head to the left, deep chest and digitigrade limbs. The four layers use the same contour: exterior with body regions, superficial muscles, skeleton and organs.
  1. Cheek
  2. Lips
Cheek on the atlas drawing, "Exterior and regions" layer, with the neighbouring structures. Left lateral view, after the Ellenberger, Baum and Dittrich plates.

Where it is

The lateral wall of the mouth, from the corner of the lips to below the ear.

System
Body regions
Region
Head

What it is and what it does

The cheek is the lateral wall of the mouth. It has a masseteric part, firm, over the masseter muscle, and a buccal part, mobile, toward the corner of the mouth, whose foundation is the buccinator muscle. In the dog the cheeks are loose and roomy, with a smooth, often pigmented mucosa. The duct of the parotid gland crosses the cheek and opens opposite the upper teeth.

Worth remembering

Under the cheek run the parotid duct and the branches of the facial nerve, which moves the face.

Names

In the atlas lessons

The head: what you see, what is underneath (6 min):

The cheek is the lateral wall of the mouth: firm at the back, over the masseter, soft at the front, where its foundation is the buccinator.

Questions from the atlas

"Find it on the drawing" questions whose answer is this structure; in the atlas you will find them in the question bank and in the lessons.

Guides it appears in