. A text-book of animal physiology [microform] : with introductory chapters on general biology and a full treatment of reproduction, for students of human and comparative (veterinary) medicine and of general biology. Physiology, Comparative; Veterinary physiology; Physiologie comparée; Physiologie vétérinaire. iye, it is still mal, to hear ist the head; 8 to pitch is r earâthat is cular canals. ttw LuidolaV AO, I, inciia; P. mlddte wdUaa tube, uxat iMtoCSUpedliM. ered that the thedbyendo- originated by ST, Mate lympml; )orU; R, mMnbnuie Mmbnuw taotorift; HEARING. 611 corresponding vibration
. A text-book of animal physiology [microform] : with introductory chapters on general biology and a full treatment of reproduction, for students of human and comparative (veterinary) medicine and of general biology. Physiology, Comparative; Veterinary physiology; Physiologie comparée; Physiologie vétérinaire. iye, it is still mal, to hear ist the head; 8 to pitch is r earâthat is cular canals. ttw LuidolaV AO, I, inciia; P. mlddte wdUaa tube, uxat iMtoCSUpedliM. ered that the thedbyendo- originated by ST, Mate lympml; )orU; R, mMnbnuie Mmbnuw taotorift; HEARING. 611 corresponding vibrations of the perilymph, which again is sent into oscillation by the movements of the stapes against the membrane covering the fenestra ovalis; so that the vibrations thus set up without the membranous labyrinth are trans- formed into similar ones within the vestibule and the scala vestibuli, and end, after passing over the scala tympani, against the membrane of the fenestra rotunda. The cochlear canal may be regarded as the seat of the most important part of the organ of hearing, and answers to the macula lutea of the eye in many "*â 4B1-â!⢠Thuwvcne secUon of a turn of oodilea. IL Ammilla of a lenileircnlar canal and tta orMa acou^a: c^au^DProi^ vubtitiMA ja a halroeU. m. Diagnun of labyrinth of riUi. (AfterLandota.) The organ of Corti has given rise to certain speculations which require a brief notice. It has been supposed that, as the key-board of a piano may be said to cause certain tones by being associated with stretched wires of varjring lengths, so the vibrations of the rods of Corti originate in certain nerve- fibers the sensations answering to the different tones we hear. It was found, however, (1) that these rod8,'though very nu- merous (6,000 to 10,000), are insufficient to account for the actual range of our hearing; (2) that they are absent in certain classes of animals that discriminate sounds very well, as birds; and (3) that the nerve-fi
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Keywords: ., bookauthormillswes, bookcentury1800, bookdecade1880, bookyear1889
