. The anatomy and physiology of the human body. Containing the anatomy of the bones, muscles, and joints; and the heart and arteries . - or spoiled, the sides of the spiral canal appearlike partitions, and are indeed, generally described as consequence of the spiral tube of the cochlea having itssides cut perpendicularly, the cochlea appears as if dividedinto three circular compartments or successive stages ; butthere is really no such division ; because the spiral turnings ofthe tube lead from the one into the other. Fig. ; (;::->A A. ScaliB. B. Lamina C.
. The anatomy and physiology of the human body. Containing the anatomy of the bones, muscles, and joints; and the heart and arteries . - or spoiled, the sides of the spiral canal appearlike partitions, and are indeed, generally described as consequence of the spiral tube of the cochlea having itssides cut perpendicularly, the cochlea appears as if dividedinto three circular compartments or successive stages ; butthere is really no such division ; because the spiral turnings ofthe tube lead from the one into the other. Fig. ; (;::->A A. ScaliB. B. Lamina C. Modiolus. D. Itifundibidum. What gives particular intricacy to the structure of this partof the labyrinth, is the lamina spiralis. This spiral parti-tion runs in the spiral tube of the cochlea, so as to divide it inits whole length ; and, in the fresh state of the parts, this laminaof bone is eked out by membrane, so as to form two perfectlydistinct tubes. These tubes are the scaltE cochleae: theyrun into each other at the apex of the cochlea; but at thebase, the one turns into the vestibule, and the other opens intothe tympanum by the foramen rotundum. In the middle of the cochlea there runs down a pillar, whichis the centre of the circumvolutions of the seals. It is called 126 OF TJIp IIUMAS EAR. the MODIOLUS. This pillar is of a sponq:y structure; andthrough it the nerves arc transmitted to the lamina spiralis, andsides of the cochlea. The modiolus opens towards the apex of the cochlea like afunnel: and \\ hen we take away the outward
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Keywords: ., bookcentury1800, bookidanatomyphysiolog, booksubjecthumananatomy
