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.
1 Osteoarthritis, the most common form of arthritis, occurs due to the gradual daily wear and tear of our joints. 2  The cartilage that provides a buffer between bones breaks down and wears away, allowing the bones to rub and grind against each other. Osteoarthritis, the most common form of arthritis, occurs due to the gradual daily wear and tear of our joints. 2  The cartilage that provides a buffer between bones breaks down and wears away, allowing the bones to rub and grind against each other.