FLEXION REFLEX By Nugent, Pam M.S. - May 11, 2013 the term that describes an abrupt withdrawal of an arm or a leg that is in response to a painful stimulation. Compare extension reflex. FLEXION REFLEX: "Our flexion reflex is a response to pain." Related Psychology Terms PROTECTIVE REFLEX BLINK RESPONSE DELAYED REFLEX ORIENTING RESPONSE EXTENSION REFLEX DEFECATION REFLEX FIXATION REFLEX STANCE REFLEX EXTENSOR THRUST REFLEX LATENCY Cite this page: Nugent, Pam M.S., "FLEXION REFLEX," in PsychologyDictionary.org, May 11, 2013, https://psychologydictionary.org/flexion-reflex/ (accessed November 20, 2017).