Morphological Studies on the different Lymph Nodes of Head Region in Buffaloes (Bubalus bubalis)

Abstract

The lymphnode of head region included the parotid, mandibular, lateral retropharyngeal and medial
retropharyngeal lymph nodes in buffalo. The parotid lymph node was the largest among the lymph nodes in the
head region. It was located ventral to the temporomandibular joint, posterior to the upper portion of the masseter
muscle and at the base of the ear. It was bean-shaped. The mandibular lymph node was located near the angle of
the mandible, positioned dorsally to the linguofacial vein and medially to the sternocephalicus muscle. It rested
on the lateral aspect of the rostral portion of the mandibular salivary gland and had a semi-circular shape. The
lateral retropharyngeal lymph node was located under the wing of the atlas and was covered by the dorsal end of
the mandibular gland. It was discoid in shape and brown to reddish-black in color. The medial retropharyngeal
lymph node was situated between the caudal-dorsal wall of the pharynx and the longus capitis muscles, medial to
the stylohyoideus muscles. It was roughly triangular in shape.