the simplest form of response in nervous system is reflex action
this is rapid automatic response to a stimulus which is not under voluntary control of brain . moving our hand away on touching a hot plate is a reflex action. the pathway taken by nerve impulses in reflex action is called reflex arc . it is an automatic response to stimulus. coughing and sneezing are also reflex actions.

Leave a Reply

Your email address will not be published. Required fields are marked *