Through the cochlear nerves we learn the height and timbre, through the vestibular nerves the intensity, of tones.
This membrane extends the length of the cochlear canals, and is stretched between a projecting shelf of bone on one side and the outer wall of the cochlea on the other.
This consists of two small membranous sacs, with one of which three membranous looped tubes, the semicircular canals, are connected; with the other is connected a spiral tube, the cochlear canal.
In birds, however, the cochlear canal has not the same development that it has in mammals, and there are no arched rods--no organs of Corti.
The vibrations are transmitted up one side and down the other side of the cochlear canal, c.
And the parts are so arranged that the vibrations, in passing from the oval to the round membrane, must run up one side and down the other side of the cochlear canal.
The cochlear canal is bounded by three walls, the outer one being the osseous wall of the cochlea.
This apex gradually elongates to form the rudiment of the cochlear canal and sacculus hemisphericus (fig.
The organ of Corti itself is derived from the epiblast cells lining the cochlear canal, and consists in the first instance of two epithelial ridges or projections.
Shortly after the formation of the rudiment of the horizontal semicircular canal a slight protuberance becomes apparent on the inner commencement of the cochlear canal.
The latter channels form the scala vestibuli on the upper side of the cochlear canal and the scala tympani on the lower.
Involuted auditory vesicle; CC points to the end which will form the cochlear canal; RL.
Between the cartilage and the parts which it surrounds there remains a certain amount of indifferent connective tissue, which is more abundant around the cochlear canal than around the semicircular canals.
The scala vestibuli lies on the upper border of the cochlear canal, and is separated from it by a very thin layer of mesoblast, bordered on the cochlear aspect by flat epiblast cells.
Soon after the formation of the sacculus hemisphericus, the cochlear canal and the semicircular canals become invested with cartilage.
The constrictions are so deep that the sacculus is only connected with the cochlear canal on the one hand, and with the general cavity of the auditory vesicle on the other, by, in each case, a narrow though short canal.
The upper extremity of the cochlear canal ends in a blind extremity called the cupola, to which the two scalae do not for some time extend.
The labium tympanicum is formed by the coalescence of the connective tissue layer separating the scala tympani from the cochlear canal with part of the connective tissue of the lamina spiralis.
The cochlear canal, which is often known as the scala media of the cochlea, becomes compressed on the formation of the scalae so as to be triangular in section, with the base of the triangle outwards.
From each cochlear nerve a path has been traced which passes to the insulae and the above-mentioned temporal region of cortex of both the cerebral hemispheres.
The inferior pair of quadrigeminal bodies are more closely in touch with the organs of hearing, and are connected by the lateral fillet with the cochlear nucleus of the auditory nerve.
These fibres of the trapezium come from the cochlear nucleus of the auditory nerve, and run up as the lateral fillet.
The above list will hopefully give you a few useful examples demonstrating the appropriate usage of "cochlear" in a variety of sentences. We hope that you will now be able to make sentences using this word. Other words: corkscrew; helical; spiral; volute; whorled
