Signal (biology) 2496261 138374492 2007-06-15T16:13:34Z Bendzh 868500 biology-stub {{main|Electrophysiology}} In [[biology]] a '''signal''' or '''biopotential''' is an [[electric]] quantity (voltage or current or field strength), caused by [[chemical]] reactions of charged [[ions]]. Another use of the term lies in describing the transfer of information between and within cells, as in [[signal transduction]]. Biological signals can also be seen as an example of [[signal (information theory)]]. == See also == * [[Action potential]] * [[Bioelectromagnetism]] * [[Signal transduction]] {{biology-stub}} [[Category:Electrophysiology]] [[ar:إشارة (أحياء)]]