a. [f. CEREBRO- (see above) + SPINAL.] Relating to the brain and spinal cord.
Cerebro-spinal axis: the brain and spinal cord as together constituting the central or main part of the cerebro-spinal system, the chief of the two great nerve-systems of vertebrates. Cerebro-spinal fluid: a serous fluid occupying the space between the arachnoid membrane and pia mater.
1826. Kirby & Sp., Entomol. (1828), IV. xxxvii. 4. In the cerebro-spinal the nervous tree may be said to be double.
1836. Todd, Cycl. Anat., I. 723/2. The cerebro-spinal axis.
1866. Huxley, Phys., xi. (1869), 283. The nervous apparatus consists of two sets of nerves and nerve-centres…. These are the cerebro-spinal system and the sympathetic system.
