As well as old leases, you should keep anything that documents the landlord-tenant relationship or supports the items you report on your tax return. If the IRS audits your tax return and you cannot produce the correct verification documents, you may be liable for additional tax and penalties.
The facet joints link the vertebrae together and give them the flexibility to move against each other. The facets are the bony knobs that meet between each vertebra. There are two facet joints between each pair of vertebrae, one on each side.
The shoulder joint is the most mobile joint in the body. It moves the shoulder forward and backward and also allows the arm to move in a circular motion, and to move up and away from the body. Shoulders get their range of motion from the rotator cuff, which is made up of four tendons.