Lymph nodes are small glands that filter lymph, the clear fluid that circulates through the lymphatic system.

Right lymphatic duct It is a short (usually absent) vessel, which drains the lymph from the right side of head, neck, right forelimb and thorax. When absent, several ducts open directly into thoracic duct or jugular confluence. It is formed by the union of right tracheal lymph duct and the efferents of right posterior cervical

Thoracic duct The thoracic duct is the chief collecting trunk of the lymphatic system. It drains lymph from all parts of the body except the right forelimb, right side of head neck and thorax. It extends from about the level of the first lumbar vertebra forwards a little beyond the thoracic inlet. Its beginning is

The lymphatic system is a network of tissues and organs that help rid the body of toxins, waste and other unwanted materials. The primary function of the lymphatic system is to transport lymph This system consists of the lymph vessels and lymph glands connected with the venous part of the blood vascular system, containing the lymph. The lymph is a

Mammary veins deserve special notice for Venous drainage of Udder. They form a venous circle at the base of the udder, which is drained chiefly by two pairs of vein. The external pudic vein in the cow is of large size and forms one of the mammary vein. The other veins of the mammary gland

Portal Vein is a large venous trunk draining the blood from the stomach and intestine and contains the digested nutrients, which are absorbed from the small intestine and destined to reach the liver. It is formed by the union of two trunks, gastric and mesenteric. The gastric trunk is formed by the union of the

Saphenous vein Saphenous vein is a subcutaneous vein on the medial surface of the thigh and leg. It is the upward continuation of the medial metatarsal vein arising from the deep plantar arch. It runs upwards in the distal part of the leg just anterior to tendo-achilles and is accompanied by the saphenous artery and tibial nerve.

Posterior vena cava is the largest venous trunk in the body. It is formed under the body of the fifth lumbar vertebra by the union of the two common iliac veins (each common iliac vein is formed by the union of the external and internal iliac veins). It receives the middle sacral vein passes forwards

Subcutaneous thoracic vein (External thoracic vein) This vein is inconstant. It arises from the region of the flank and the abdominal wall and passes forwards under the cutaneous muscle in company with the nerve of the same and joins the deep brachial vein in the axilla. It may join the brachial or subscapular veins. It is

The cephalic vein is formed by the upward continuation of the medial metacarpal vein. It passes subcutaneously upward and forwards in an oblique manner on the medial face of the forearm then upward in the arm to about its middle and is connected with the median vein by an anastomotic branch, medial cubital vein. It then