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.
Epidemiology/ Etiology. Discogenic pain is a form of low back pain, caused by chemically or mechanically damaged intervertebral discs.(level: 3A) This damage can find its origin in traumatic events, as well as in deterioration due to aging.