Carpenter's principles of human physiology . on or expiration; and its closure by an auto-matic impulse forms part of the acts of Coughing and Sneezing (§ 280),besides giving rise to those more prolonged impediments to the ingress andegress of air, which have been already noticed as resulting from disorderedstates of the Nervous system. With these actions, the muscles which regu-late the tension of the vocal ligaments have nothing to do; and we have seenthat they are performed by the instrumentality of the Pneumogastric orproper Respiratory nerve (§ 276). The appearances which presentthemselve
Carpenter's principles of human physiology . on or expiration; and its closure by an auto-matic impulse forms part of the acts of Coughing and Sneezing (§ 280),besides giving rise to those more prolonged impediments to the ingress andegress of air, which have been already noticed as resulting from disorderedstates of the Nervous system. With these actions, the muscles which regu-late the tension of the vocal ligaments have nothing to do; and we have seenthat they are performed by the instrumentality of the Pneumogastric orproper Respiratory nerve (§ 276). The appearances which presentthemselves when the interior of the Larynx is examined during life are,according to Professor Czermak, that in the almost semi-lunar space boundedby the posterior wall of the Pharnyx (Fig. 304) and the base of the tongue,the upper curved edge of the epiglottis (e) is seen, its lateral portions justtouching the posterior pharnygeal wall, and its central portion arching for-wards, so as to leave an interval for the passage of air in the median OF THE LARYNX, AND ITS ACTIONS. 831 Fig. 304.
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectphysiology, bookyear1
