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.
physÂ·iÂ·olÂ·oÂ·gy (fÄ­zâ²Ä-Ålâ²É-jÄ) The scientific study of an organism's vital functions, such as circulation, respiration, and digestion. physiology 1. the branch of medical science that studies the functions of living organisms or their parts. 2. the organic processes or functions of an organism or any of its parts. â physiologist, n. â physiologic, physiological, adj.