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.
Joints between the vertebrae in your neck enable you to tilt, rotate and flex your neck. Joints between the larger vertebrae in your lower back (lumbar spine) enable you to bend, turn and twist at your waist. Your spine is made up of 30 bones stacked in a column. Each of these bones is called a vertebra. From the side, your vertebral column has a natural curve toward the back of your body as it passes through your upper chest, balanced by a similar curve toward the front through the lower vertebrae.