Causes of facet disease. Facet disease may arise when the cartilage in a facet joint is worn down as a result of aging, injury or wear and tear. This type of spinal damage can be attributed to arthritis, work, overuse or an injury sustained in an accident.acet disease occurs when a facet joint degenerates. While this can take place at any level of the spine, it most commonly affects the lumbar (lower spine) region. 1  Facet arthritis. 2  Facet joint syndrome. 3  Facet disease.
The raw materials of photosynthesis, water and carbon dioxide, enter the cells of the leaf, and the products of photosynthesis, sugar and oxygen, leave the leaf. Cross section of a leaf, showing the anatomical features important to the study of photosynthesis: stoma, guard cell, mesophyll cells, and vein.
Confidence votes 48. They absorb carbon dioxide and sunlight and turn it into chemical energy in the leaves using chlorophyll as a catalyst. This releases glucose (a sugar), and oxygen. Most of the oxygen released as a result of photosynthesis is from water which undergoes a photo-oxidation process. Photosynthesis is very complex and is involved with the production of sugars and the transfer of energy, as well as the manufacture of other compounds such as amino acids.