Postal Exam 473 / 473E. Study Guide: Yes! This is the biggie â¦ the most popular Postal exam â¦ the one used to fill all over 90% of all Postal jobs, all entry-level Processing, Distribution, Delivery, and Retail positions. Listed below are the actual jobs filled from this exam: 1  PSE Sales, Service, and Distribution Associate.
Osteoarthritis, also known as degenerative arthritis degenerative joint disease, OA, or osteoarthrosis, is a form of arthritis caused by inflammation, breakdown, and the eventual loss of cartilage in the joints-the cartilage wears down over time.
What is arthritis? Arthritis is a general term that literally means inflammation of the joints.. The most common form of arthritis is osteoarthritis, which is caused by wear and tear on joint cartilage. Another form is rheumatoid arthritis, which causes joint inflammation due to an immune system disorder. This section only addresses osteoarthritis. Osteoarthritis affects nearly 27 million Americans and is the most common cause of long-term disability. It is caused by degeneration of the cartilage in joints.