. Elementary physiology . Fig. 85.—The trachea. Front. h, hyoid bone ; ti, thyroid cartilage ; c, cricoid ; e, epiglottis ; tr, trachea ; b and 3', bronchi. Fig. 86.—The trachea. Back. a, arytenoid cartilages ; h, hyoid bone ; tt', thyroid cartilage ; c, cricoid ; c, epi- glottis ; tr, trachea ; b and b', bronchi. exposed to air, which is continually renewed by the respiratory movements and gaseous diffusion. The manner in which the air is alternately pumped into and

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Keywords: ., bookcentury1800, bookdecade1890, bookpubli, booksubjectphysiology