. A text-book of animal physiology, with introductory chapters on general biology and a full treatment of reproduction ... Physiology, Comparative. DIGESTION OP POOD. 333 of food or drink entering the windpipe produces a perfect storm of excitement in the respiratory system. The food, there-. Fio. 281.—Cavities of mouth and pharynx, etc. (after Sappey). Section, in median Une, of face and superior portion of neclc, designed to show the mouth in its relations to the nasal fossae, pharynx, and larynx : 1, sphenoidal sinuses ; 2, internal orifice of Eustachian tube : 3, palatine arch ; 4, velum p
. A text-book of animal physiology, with introductory chapters on general biology and a full treatment of reproduction ... Physiology, Comparative. DIGESTION OP POOD. 333 of food or drink entering the windpipe produces a perfect storm of excitement in the respiratory system. The food, there-. Fio. 281.—Cavities of mouth and pharynx, etc. (after Sappey). Section, in median Une, of face and superior portion of neclc, designed to show the mouth in its relations to the nasal fossae, pharynx, and larynx : 1, sphenoidal sinuses ; 2, internal orifice of Eustachian tube : 3, palatine arch ; 4, velum pendulum palati: 5, anterior pillar of soft palate ; 6, posterior pillar of soft palate ; 7, tonsil; 8, lingual portion of cavity of pharynx ; 9, epiglottis ; 10, section of hyoid bone ; II, laryngeal portion of cavity of pharynx ; 12, cavity of larynx. fore, when it readies the oesophagus, must be kept, on the one hand, from entering the nasal, and, on the otlier, tlie laryngeal openings. This is accomplished as follows: When the food has been gathered into a bolus on the back of the tongue, the tip of this organ is pressed against the hard palate, 'by which the mass is prevented from passing forward, and, at the same time, forced back into the pharynx, the soft palate being raised and the edges of the pillars of the fauces made to approach the uvula, wliich fills up the gap remaining, so that the posterior nares are closed and an inclined plane provided, over which the morsel glides. The after-result is said to depend on the size of the bolus. When considerable, the constrictors of the. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Mills, Wesley, 1847-1915. New York, D. Appleton
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