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.
Buffalo were very important to the Cheyenne tribe, providing a source of food, clothes and tools. Each day, the first task was to build a fire. Announcements were made by a crier, who circled the people as they pursued daily activities. Children modeled items out of clay, while women gathered roots and wood.