The pyloric sphincter prevents the regurgitation of chyme from the duodenum into the stomach. It also controls the flow of chyme into the intestine, which provides the intestines with a manageable volume of chyme from which to absorb nutrients.
Pittsburgh star James Conner diagnosed with cancer. Conner says he has Hodgkin lymphoma, but he vows to play again.
Types and Causes. Lymphedema can affect any lymph node in the lymphatic system. The types of lymphedema are related to the specific causes, which can include cancer, cancer treatments, infections, or injury. Blood clots and deep vein thrombosis can also cause the lymph nodes to become enlarged.