The cells of the adaptive immune system are special types of leukocytes, called lymphocytes. B cells and T cells are the major types of lymphocytes and are derived from hematopoietic stem cells in the bone marrow.
Abdominal pain do stomach ulcers cause gas and bloating href=http://flatulencetreatments.com/how-to-make-good-fart-sounds/>or swelling. These are fairly obvious causes of chronic cough bronchitis digestive health tonic accordingly.
Stomach and duodenal ulcers are usually due to one of two causes: the bacterium Helicobacter pylori or nonsteroidal anti â inflammatory drugs (NSAIDs) like aspirin, ibuprofen, and naproxen. An ulcer, regardless of the cause, can cause abdominal pain, bleeding, or even cause a hole (perforation). An ulcer is maintained by an acid environment in the stomach and pepsin, which is produced in the stomach. Chronic infection with H. pylori causes an increase in acid.