Definition & Facts. Diverticulosis is a condition that occurs when small pouches, or sacs, form and push outward through weak spots in the wall of your colon. In diverticulitis, one or a few of the pouches in the wall of your colon become inflamed. Symptoms & Causes Most people with diverticulosis do not have symptoms. Symptoms may include constipation, diarrhea, abdominal pain, or bloating. Diverticulitis most often causes abdominal pain, which is usually severe. Experts are not sure what causes these conditions.
For the album by the band The White Stripes, see White Blood Cells (album) . White blood cells (WBCs), also called leukocytes or leucocytes, are the cells of the immune system that are involved in protecting the body against both infectious disease and foreign invaders.All leukocytes are produced and derived from a multipotent cell in the bone marrow known as a hematopoietic stem cell.onocytes and neutrophils are phagocytic. The number of leukocytes in the blood is often an indicator of disease, and thus the WBC count is an important subset of the complete blood count. The normal white cell count is usually between 4 and 11 Ã 10 9 /L.
White blood cells circulate throughout the body, ready to fight infections. They live about two or three weeks, when they are broken down and recycled by the body. A normal white blood cell count is between about 4,500 and 10,000 cells per microliter. Many conditions can cause a low white blood cell count: â¢ Infection (which usually increases the white blood cell count, but may decrease it). â¢ Drugs, especially chemotherapy. â¢ Human immunodeficiency virus (HIV). â¢ Severe alcohol abuse.