a. Phys. [f. EXCIT-OR + MOTORY; formed by Marshall Hall in 1836.] Of or pertaining to the spinal group of nerves, composed of the excitor and the motor nerves. Often applied to the reflex actions that are produced by this division of the nervous system.
1836. M. Hall, Lect. Nervous Syst., 12. I propose to divide [the Nervous System] into 1. The Cerebral … 2. The True Spinal or the Excito-motory; and 3. The Ganglionic.
1847. Todd, Cycl. Anat., III. 609/2. A distinct series of excito-motory fibres.
1854. Woodward, Mollusca, II. 189. Besides this excito-motory system … the Nudibranches possess a ‘sympathetic’ system.
1861. T. Graham, Pract. Med., 593. In infancy, when the voluntary power is as yet undeveloped, the excito-motory is in the fullest activity.
