A distinction can be made between proximal ageing (age-based effects that come about because of factors in the recent past) and distal ageing (age-based differences that can be traced back to a cause early in person's life, such as childhood poliomyelitis).
physiologic. pertaining to physiology; normal; not pathologic. physiologic saline solution (physiologic salt solution) (physiologic sodium chloride solution) a 0.9 per cent solution of sodium chloride and water; it is isotonic, i.e., of the same osmotic pressure as blood serum. It is sometimes given intravenously to replace lost sodium and chloride.
In Depth: Muscular. The primary physiologic role of muscles is to move the bones of the skeleton, but muscles also enable the heart to beat and constitute the walls of other important hollow organs. There are three types of muscle tissue: 1  Skeletal muscle: This type of muscle creates movement in the body. 2  There are more than 600 skeletal muscles, and they makes up about 40 percent of a personâs weight. 3  When the nervous system signals the muscle to contract, groups of muscles work together to move the skeleton.