what are the main organs in the lymphatic system
Lymphatic system The lymphatic system consists of lymphatic organs, a conducting network of lymphatic vessels, and the circulating lymph.
Small intestine Food from the stomach is allowed into the duodenum through the pylorus by a muscle called the pyloric sphincter.
Vein Veins are present throughout the body as tubes that carry blood back to the heart. Veins are classified in a number of ways, including superficial vs. deep, pulmonary vs. systemic, and large vs. small.
Vein Veins are less muscular than arteries and are often closer to the skin. There are valves in most veins to prevent backflow.