Depression (physiology) 4906497 189151499 2008-02-05T00:24:35Z 64.107.90.124 '''Depression''' in physiology and medicine refers to a lowering, in particular a reduction in a particular biological variable or the function of an organ. It is in contrast to elevation. For example, it is possible to refer to "depressed [[thyroid]] function" or to a depression of blood flow in a particular area. Further examples: * Depression of the [[central nervous system]] of an animal may be expressed as drowsiness or sleep, lack of coordination and [[unconsciousness]]. [[Category:Medical terms]]