Rheumatoid arthritis is the best definition and it is an autoimmune problem.
it hurts them
Arthritis usually involves the damage destruction, inflammation or irritation to the cartilage in the joints leading to pain or direct contact of the bones that make up that joint.
No bones are joints.
There are many different joints that hold bones together. They vary depending on which part of the body they are in. Joints inlcude synovial joints, hinge joints, pivot joints and binomial joints. Generally the joints that hold the bones together are called binomial joints.
Bursitis is the medical term for inflammation of the bursa. Bursitis-a fluid filled sac between joints It is used as a cushion, to prevent sudden shock and prevent bone rubbing on bone. Inflammation means swelling. So, inflammation the bursa means swelling of the pads between the bones in a joint.
A "Bursa" is plural for "Bursae " which is a fluid-filled sac lined by synovial membrane with an inner capillary layer of slimy fluid (similar in consistency to that of a raw egg white). It provides a cushion between bones and tendons and/or muscles around a joint. This helps to reduce friction between the bones and allows free movement. Bursae are filled with synovial fluid and are found around most major joints of the body. There are 160 bursae in a human body. Without the bursa, movement would be painful. Bursitis is the inflammation of the bursa. They can become inflamed from injury, infection (rare in the shoulder), or due to an underlying rheumatic condition. Examples of bursitis include injury as subtle as lifting a bag of groceries into the car to inflame the shoulder bursa, infection of the bursa in front of the knee from a knee scraping on asphalt, and inflammation of the elbow bursa from gout crystals.
Joints. The joints connect the bones into place, so it is your bones that hurt when you get bad joints in old age.
Joints are the connections between bones that allow you to move.
The joints that hold together the bones of the skull are called sutures, while the joints that hold together the bones of the sternum are called cartilaginous joints.
Joints!
the nature of the word arthritis points to the bones, the words comes from Greek arthro. meaning joint, and it's referring to inflammation. These are a group of conditions involving damage to the joints of the body. the condition that is known as arthritis always refers to condition that involve various degrees of pain, inflammation swelling, joint stiffness around the joint(s) of the body. Arthritic disorders like lupus and rheumatoid can also affect other organs in the body and cause muscle damage around affected joints both directly as a result of inflammation and as a result of pain leading to muscle atrophy.