1 Know what a set and an element are. 2  Write a mathematical statement with an equal sign or an inequality.  Identify what numbers belong to the set of natural numbers, whole numbers, integers, rational numbers, irrational numbers, and real numbers.
Discogenic spondylosis, which is often thought of as a form of spinal osteoarthritis, refers to a degenerative condition that affects the joints of the spine.
Causes of discogenic pain. The most common cause of discogenic pain is the gradual deterioration of a disc in the spine due to the natural aging process. In some cases, this is referred to as degenerative disc disease. The discs in the spine serve to cushion and properly space the vertebrae of the spine.