Elementary anatomy and physiology : for colleges, academies, and other schools . elementaryanato00hitc Year: 1869 AND PHYSIOLOGY. 259 vanced do not by any means entirely overthrow the old theo- ry. They show us that the theory of combustion does not cover the whole ground, but that other causes, as well as oxydation produce animal heat. And we propose the idea that animal heat, like digestion, is a chemico-vital process, that is, a process under the immediate influence of chemical changes, but entirely under the control of the vital principle, since animal heat can not be maintained after dea
Elementary anatomy and physiology : for colleges, academies, and other schools . elementaryanato00hitc Year: 1869 AND PHYSIOLOGY. 259 vanced do not by any means entirely overthrow the old theo- ry. They show us that the theory of combustion does not cover the whole ground, but that other causes, as well as oxydation produce animal heat. And we propose the idea that animal heat, like digestion, is a chemico-vital process, that is, a process under the immediate influence of chemical changes, but entirely under the control of the vital principle, since animal heat can not be maintained after death. ORGANS OF THE VOICE. DEFINITIONS AND DESCRIPTIONS. 459. The Larynx; its Cartilages.—The Larynx in all animals is the essential or- gan for the production of the voice. It has also very much the same structure in every animal which has the power of expressing its feelings by the voice. A cartilaginous tube, imperfectly conical, the base directed upwards, made up of distinct portions or seg- ments slightly movable upon one another, and with a cer- tain portion of the channel lengthened into a narrow and elongated opening, constitutes a larynx. In man this organ is made up of seven distinct portions or cartilages, two Arytenoid (pitcher-shaped), Eig. 255. A Lateral View of the Larynx. 1, Os Ilyoides. 2, Thyreo-Hyoid Ligaments. 3, Cornn Majus of the Thyroid Cartilage. 4, Its Angle and Side. 5, Cornu Minus, 6, Lateral Portion of the Cricoid Carti« lage. 7, llings of the Trachea.
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