The essentials of healthA text-book of anatomy, physiology, hygiene, alcohol, and narcotics . 91. Side view of the whole human brain: (1) cerebrum ; (2) cere-- bellum ; (3) medulla. While it is true that many noted men had large brains,it is also true that some equally as noted had smallbrains. Yet it can be safely asserted that, as a generalrule, the larger the brain the greater the capacity forintellectual power; but to this statement there are somestriking exceptions. It appears that there is somethingbesides quantity necessary for the highest mental capa-bilities. This may be called qualit
The essentials of healthA text-book of anatomy, physiology, hygiene, alcohol, and narcotics . 91. Side view of the whole human brain: (1) cerebrum ; (2) cere-- bellum ; (3) medulla. While it is true that many noted men had large brains,it is also true that some equally as noted had smallbrains. Yet it can be safely asserted that, as a generalrule, the larger the brain the greater the capacity forintellectual power; but to this statement there are somestriking exceptions. It appears that there is somethingbesides quantity necessary for the highest mental capa-bilities. This may be called quality, or some peculiarityof the brain material whereby it renders its possessorcapable of great intellectual attainment. The brain is divided into the cerebrum, the cerebel-lum, and the medulla oblongata. The Cerebrum, The cerebrum is the brain proper. It THE NERVOUS SYSTEM. 259 is the part above the ears, and is familiarly known asthe greal brain. It is believed that the cerebrum is theorgan of the mind ; that it is here we think, know, andreason. The cerebrum is divided into two parts by a. Fig. 92. The human brain, viewed from above: only the cerebrum isseen, with its deep fissure nearly dividing it. natural fissure which passes from the front the bottom of the fissure the two parts are united bya band of nervous tissue, as shown at 3 in Fig. this it would at first appear that we have two 260 THE ESSENTIALS OF HEALTH. brains corresponding to the right and left sides of thebody; but doubtless the band of union between themnot only connects the structure of the two but also insome way unites their functions. Figs. 91, 92, and 93show that the surface of the brain is not smooth in
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectphysiology, bookyear1
