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The interactive dog atlas · Organs · Head

Mandibular lymph nodes lymphonodi mandibulares

The mandibular lymph nodes are the lymph nodes under the jaw that you feel as small beads under the skin; they swell when the face or the mouth has an infection.

Open in the interactive atlas Guide: Internal systems Worksheet

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. Mandibular lymph nodes
  2. Mandibular gland
Mandibular lymph nodes on the atlas drawing, "Organs" layer, with the neighbouring structures. Left lateral view, after the Ellenberger, Baum and Dittrich plates.

Where it is

Below the angle of the mandible, immediately under the skin.

Layer
Organs
System
Immune and lymphatic system
Region
Head

What it is and what it does

The mandibular lymph nodes lie near the angle of the mandible, in the caudal half of the region between the two rami of the jaw, separated from the skin only by the platysma; they drain the regions of the face. They are easy to palpate, especially when inflamed, and belong to the mandibular lymph center, a constant group in carnivores.

Worth remembering

If you feel them large and hard, go to the vet; the atlas does not make diagnoses.

Names

  • Latin term: lymphonodi mandibulares.
  • In Romanian: Limfonodulii mandibulari (Romanian page).

Guides it appears in

From the same region: Head

All structures, in the atlas · Flashcards: organs