Human physiology (1913) (14777503054)

Identifier: humanphysiology02luci (find matches)

Title: Human physiology

Year: 1913 (1910s)

Authors: Luciani, Luigi, 1842- Welby, Frances A. (Frances Alice) Camis, Marie Holmes, Gordon, Sir, 1876-1965 Pembrey, M. S. (Marcus Seymour), 1868-1934

Subjects: Physiology

Publisher: London : Macmillan and Co.

Contributing Library: MBLWHOI Library

Digitizing Sponsor: MBLWHOI Library

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\ FICI. 55.—Diagram showing position of soft palate, tongue, glottis, pharynx, etc-. A, at rest ;B, during deglutition. (Zaufal.) t, Salpingo-pharyngeal fold; I, fold of levator palati;c, nmsculo-superior constrictor; a, azygos uvular which completes the closure of the nasalcavity. pharyngeal walls forming Passavants swelling, as shown in Fig.55. This, according to Kronecker, comprises the fundamentalmechanism of deglutition : the rest, as minutely described bycertain authors, is accessory, and serves principally to prevent thefood or drink from taking the wrong path to the glottis or nasalfossae, and to clear the canal of the food residues, or to drive thebolus (when it is blocked at the lower end of the oesophagus) intothe stomach, by overcoming the resistance of the cardia. Another important fact discovered by Kronecker and Meltzeris that every active movement of swallowing carried out in theprimary segment of the alimentary canal, particularly from thecontraction of the myloliyo

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1913

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