from Wiktionary, Creative Commons Attribution/Share-Alike License
- adj. Exciting motion; said of that portion of the nervous system concerned in reflex action, by which impressions are transmitted to a nerve centre and then reflected back so as to produce muscular contraction without sensation or volition.
Sorry, no etymologies found.
Sir J.Y. Simpson suggested, in an elaborate study of the position of the child in the womb, that the extreme excitomotory sensibility of the skin in various regions, such as the sole of the foot, the knee, the sides, which already exists before birth, has for its object the excitation and preservation of the muscular movements necessary to keep the foetus in the most favorable position in the womb. [