. Human physiology (Volume 1) . me that they are muchmore pointed. On the other hand,the cuspidati are remarkably large; and the incisors, in general,acuminated. The herbivorous animal has an arrangement the re-verse of this. The condyle or head of the lower jaw is rounded; andcan, therefore, be moved in all directions ; and as easily horizontallyas up and down. The glenoid cavity is shallow, and yields the samefacilities. The articulation, which is very close in the carnivorousanimal, is here quite loose. The levator muscles are much morefeeble ; the temporal fossa is less deep ; the zygomati
. Human physiology (Volume 1) . me that they are muchmore pointed. On the other hand,the cuspidati are remarkably large; and the incisors, in general,acuminated. The herbivorous animal has an arrangement the re-verse of this. The condyle or head of the lower jaw is rounded; andcan, therefore, be moved in all directions ; and as easily horizontallyas up and down. The glenoid cavity is shallow, and yields the samefacilities. The articulation, which is very close in the carnivorousanimal, is here quite loose. The levator muscles are much morefeeble ; the temporal fossa is less deep ; the zygomatic arch lessconvex ; and the zygomatic fossa less extensive. On the otherhand, the pterygoid fossa is ample, and the muscles of the samename largely developed. The molares are large and broad; andtheir magnitude is so great as to require, that the jaw should bemuch elongated in order to make room for them. The joint of the lower jaw has, in man, solidity enough for thejaws to exert considerable pressure with impunity; and laxity. Skull of the C*w. 478 DIGESTION. enough that the lower jaw may execute horizontal action of the levator muscles is the most extensive ; but thelateral or grinding motion is practicable to the necessary extent;and the muscles of both kinds have a medium degree of develop-ment. The teeth, likewise, partake of the characteristics of thoseof the carnivorous and herbivorous animals ; twelve — the canineteeth and lesser molares — corresponding to those of the carnivo-rous; and twenty — the incisors and larger molares — to those ofthe herbivorous. The tongue must be regarded as an organ of mastication. Itrests horizontally on the floor of the mouth ; is free above, an-teriorly, and, to a certain extent, beneath and at the sides. Be-hind, it is united to the epiglottis by three folds of the mucousmembrane of the mouth; and is supported at its base by the oshyoides, with which it participates in its movements. The tongue,as the organ of tas
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