Rheumatoid arthritis is a disease that occurs when the body’s immune system starts attacking its own joint tissue. The symptoms
are pain, inflammation, and swelling in the joints. Orthopedists (doctors who study bones) and immunologists (doctors who study the immune system) both work with patients who have rheumatoid arthritis. What is the difference between the orthopedists and immunologists who treat the disease?
The epithelial cells of the villi transport nutrients from the lumen of the intestine into these capillaries ( amino acids and carbohydrates) and lacteals (lipids).
