Haeckel, Evol

of Man (trans.), II. 220. brain-box (brānʼboks), n. The cranium proper; the cranial part of the whole skull, containing the brain, as distinguished from the facial parts of the same. brain-case (bran'kās), n . Same as brain - box . brain-cavity (brān'kav"i-ti), n. 1. One of the ventricles of the brain. 2. The interior of the cranium or skull, containing the brain. brain-coral (brān'kor"al), п. The popular name of coral of the genus Me and rin a : so called because it resembles in its superficial appearance the convolutions of the human brain. The genus is of the family Meandri nid a, belonging to the a porose division of Brain-coral (Me and rin a cerebriform is). stone-corals. Also called brain stone and brain stone-coral. brained (brand), a . [ brain + -ed2.] 1. Furnished with brains: used chiefly in composition: as, crack- brained ; harebrained . If the other two be brained like us, the state totters. Shak ., Tempest, iii. 2. 2. [Pp. of brain , v .] Having the brains knocked or dashed out; killed by a blow which breaks the skull. brain-fag (brān'fag), n . Mental fatigue or exhaustion, as from overwork. In states of extreme brain - fag the horizon is narrowed sponse, more or le immediate, to the most complex and extensive incoming sensory stimulation. With functions of this high degree of complexity are a ociated in some parts much simpler functions resembling those of the spinal cord. The cortex of the cerebral hemispheres is the portion of the brain in which the most complex coördinations seem to be effected, and which is most directly involved in mental acts. Certain parts of the cortex are, however, peculiarly related to certain special incoming or outgoing stimulations, and are called sensory or motor centers. (See cerebral , and cerebral localization , under lo cal i zati on.) The corpus striatum is usually regarded as especially concerned with stimulations pa ing downward, and the optic thalamus with those pa ing upward; among almost to the pa ing word,