Rheumatoid arthritis (RA) is an autoimmune disease that causes chronic inflammation of the joints. Autoimmune diseases are illnesses that occur when the body's tissues are mistakenly attacked by their own immune system.
What role did the bison or buffalo play in the culture of the Plains Indians? The bison were an important source of fur, food, and shelter for the Plains Indians. They used every part of the animals they killed. Bison were also an important part of their culture.
Under the Jackson presidency there was an unspoken unwritten policy of the only good Indian was a dead one so the army and others did their best to remove or kill any Native Americans in Western lands. One of the primary animals that were used by the plains Native American tribes was the buffalo. The buffalo provided food, shelter, and was used in religious practice by the plains tribes. Killing the buffalo would take this source from them.