. Human physiology : designed for colleges and the higher classes in schools, and for general reading. are opened widely,showing the rolling eyeballs. The muscle that raises the upperlip, 6, Fig. 131, and the muscle that raises the wing of thenose and the lip, are in strong action. The nostrils are there-fore spread out to the utmost, and the upper lip is drawn up-ward. But as the circular muscle of the mouth also actsstrongly, there is only that part of the upper lip to whichthe muscles, a and b, Fig. 131, are attached, that can be drawnup. This point is just where the sharp eye-teeth, or can
. Human physiology : designed for colleges and the higher classes in schools, and for general reading. are opened widely,showing the rolling eyeballs. The muscle that raises the upperlip, 6, Fig. 131, and the muscle that raises the wing of thenose and the lip, are in strong action. The nostrils are there-fore spread out to the utmost, and the upper lip is drawn up-ward. But as the circular muscle of the mouth also actsstrongly, there is only that part of the upper lip to whichthe muscles, a and b, Fig. 131, are attached, that can be drawnup. This point is just where the sharp eye-teeth, or canineteeth, as they are sometimes called, are situated. They aretherefore seen laid bare. This allies man to the snarlingbrute, that shows his sharp teeth in his rage. Cooke, the tra-gedian, is said to have had great power in the use of thesemuscles. In him, says Sir Charles Bell, the ringentes (thesnarling muscles) prevailed; and what determined hate couldhe express, when, combined with the oblique cast of his eyes, 20* 234 HUMAN PHYSIOLOGY. Complicated muscular action in expressing rage. FIG. he drew up the outer part of the upper lip, and disclosed asharp angular tooth ! In rage the teeth are firmly closed bythe muscles which move the lower jaw, and when utterance isgiven to it by the voice, these muscles but slightly relax to letthe words out through the almost closed teeth, and are rigidagain as soon as the words are finished. 342. The expression of mere bodily fear, represented in , is very different from that of rage, although some of themuscles act in the same way in both. The frontal muscle actsvery forcibly, raising the eyebrows to their utmost extent, andthe eyeballs are largely uncovered, giving to the eyes a broadstare. The corrugator supercilii is perfectly relaxed, while inrage it is strongly contracted. The lip is raised and the nos-trils are spread out by the same muscles, a and b, Fig. 131,which act so forcibly in rage. But the circular muscle of th
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