Canal

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Related to External ear canal: External Auditory Meatus, External acoustic meatus

CANAL. A trench dug for leading water in a particular direction, and confining it.
     2. Public canals are generally protected by the law which authorizes their being made. Various points have arisen under numerous laws authorizing the construction of canals, which have been decided in cases reported in 1 Yeates, 430; 1 Binn. 70; 1 Pennsyl. 462; 2 Pennsyl. 517; 7 Mass. 169; 1 Sumu. 46; 20 Johns. 103, 735; 2 Johns. 283; 7 John. Ch. 315; 1 Wend. 474; 5 Wend. 166; 8 Wend. 469; 4 Wend. 667; 6 Cowen, 698; 7 Cowen, 526 4 Hamm. 253; 5 Hamm. 141, 391; 6 Hamm. 126; 1 N. H. Rep. 339; See River.

References in periodicals archive ?
nov., a novel ascomycetous yeast isolated from the external ear canal of an inpatient in a Japanese hospital.
(10) reported that, among the patients they operated on with an initial diagnosis of COM and with a polypoid mass in the external ear canal, cholesteatoma was the main pathology in the majority of the cases (86.7%).
The right ear showed a large retained cotton swab in the medial end of the external ear canal. The external ear canal skin including the bony-cartilaginous junction was not inflamed.
For sound to reach the inner ear it has to travel through the external ear canal, cross the middle ear, and enter the hearing organ (the cochlea) in the inner ear.
A live foreign body in the external ear canal should be considered in the differential diagnosis of acute-onset tinnitus.
"Beyond the discomfort the animal experiences, the infection can extend beyond the external ear canal," says dermatologist William H.
Fine-needle biopsy of external ear canal masses in the cat: cytologic results and histologic correlations in 27 cases.
1) Cured: The tympanic membrane did not congest after surgery, and purulent secretions in the external ear canal and otitis media symptoms disappeared; 2) remitted: the tympanic membrane still mildly congested after surgery, but purulent secretions in the external ear canal and otitis media symptoms were significantly mitigated; 3) ineffective: the tympanic membrane was still congested after surgery, and purulent se- cretions or clinical symptoms were unalleviated or even aggravated.
Results of experiments have shown that, in particular, the signal components that travel through the external ear canal and are reflected by the tympanic membrane, as well as those signal components that pass through the tympanic membrane and are reflected within the inner parts of the ear, are both important for recognition.