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.
The men of the Cheyenne tribe were considered to be brave providers and the women virtuous. Though the buffalo provided food, bone for tools and weapons, and hide, their clothing was typically made of buckskin, which was softer in texture than buffalo skin.