Classification. Other classification systems exist however. Cowardin (1979) recognizes the following five major wetland classifications: marine, estuarine, lacustrine, riverine, and palustrine. Marine and estuarine wetlands are associated with the ocean and include coastal wetlands, such as tidal marshes. Lacustrine wetlands are associated with lakes, while riverine wetlands are found along rivers and streams. Palustrine wetlands may be isolated or connected wet areas and include marshes, swamps, and bogs.
Top 10 Doctor insights on: Spinal Stenosis Knee Pain. 1 Pain in front top portion of legs from knees up after walking relieved when sitting. Had surgery for spinal stenosis 15 months ago with relief. Muscle strain: Male just over one year post-surgery for spinal stenosis has bilateral pain in quads w. walking.
When a person suffers from spinal stenosis, however, the spine becomes narrowed in one or more of these three places: â¢ the space at the center of the spine. â¢ the canal where nerves branch out from the spine. â¢ the space between the vertebra or bones of the spine. About 75 percent of cases of spinal stenos occur in the lower back, which causes a narrowing of the spine that compresses the nerve root causing pain in the back of the leg. Nevertheless, this is only one of many possible signs and symptoms that you might be suffering from spinal stenosis.