The lymph nodes are more numerous, smaller and occur in groups unlike in the ox in which they are less numerous, compact and larger.
The mesenteric lymph nodes are situated in the great mesentery chiefly near its root.
The cubital lymph nodes are present behind the biceps brachii on the brachial vessels and median nerve.
Their efferents pass to axillary and prescapular glands.
Deep inguinal lymph nodes are situated in the proximal part of the femoral canal between the pectineus and sartorius.
Dog
The suprapharyngeal and internal iliac lymph nodes are comparatively very large.
Posterior mediastinal lymph nodes are absent.
Intercostal lymph nodes are absent.
Portal lymph nodes occur in the course of portal vein.
Mesenteric lymph nodes are two elongated nodes occurring at the root of mesentery.
Supramammary lymph node is single or sometimes two in number related in the inguinal mammary glands.
Popliteal lymph node is on the gastrocnemius between biceps femoris and semitendinosus.
It is more superficial than in other animals and hence is commonly palpable.
Fowl
The lymphatics of the chicken consist of lymph vessels and lymph glands.
The lymph nodes are very small and are in the form of lymph nodules, which are very numerous in the walls of the alimentary tract and a few are found in the cervical region.
The lymph vessels from the abdomen and posterior part of the body join together to form a plexus about the level of the coeliac artery.
From this lymphatic plexus a right and left thoracic duct leads forward to the jugular vein of its respective side. Before entering the jugular vein they receive the duct from the head, neck, thoracic limbs and anterior part of the body.
