Arteritis obliterans, the closure or obliteration of the lumen of a blood vessel. Arteritis deformans, changes in the walls of blood vessels due to inflammation. Softening, calcification, fatty degeneration, abscesses, ruptures, hemorrhages, ulceration, infiltration between the coats of the artery, are because of inflammation of the nervi vasorum. Arterio-sclerosis may be pathological or physiological, as determined by age. High tension and rapid pulse may be physiological or pathological.
Inflammation modifies physiological processes.
Physiological functions pathologically performed are exaggerated or perverted capacities of the structure involved. Hemorrhage of blood vessels, excessive exudation of fluid through their walls is but a physiological process, the emigration of corpuscles, exaggerated. Rheumatism may be acute or chronic, the former is characterized by inflammation, fever perspiration, pain and swelling of the joints. The latter is slow in progress, the fibrous structure of the joints are thickened and contracted. The fibers of the body affected may be that of nerves, muscles or tendons.