(n.) An artificial channel filled with water and designed for navigation, or for irrigating land, etc.
(n.) A tube or duct; as, the alimentary canal; the semicircular canals of the ear.
Example Sentences:
(1) In addition to the aqueduct other associated inner ear anomalies have been identified in 60% of this population including: enlarged vestibule (14); enlarged vestibule and lateral semicircular canal (7); enlarged vestibule and hypoplastic cochlea (4); and hypoplastic cochlea (4).
(2) After four years of existence, many evaluations were able to show the qualities of this system regarding root canal penetration, cleaning and shaping.
(3) Digestion is initiated in the gastric region by secretion of acid and pepsin; however, diversity of digestive enzymes is highest in the post-gastric alimentary canal with the greatest proteolytic activity in the spiral valve.
(4) A new theory for the peculiar site selection of cholesteatomas of the external auditory canal is postulated.
(5) In the anesthetized cat, the posterior canal nerve (PCN) was stimulated by electric pulses and synaptic responses were recorded intracellularly in the three antagonistic pairs of extraocular motoneurons.
(6) Two hundred and forty root canals of extracted single-rooted teeth were prepared to the same dimension, and Dentatus posts of equal size were cemented without screwing them into the dentine.
(7) 5 reconstructions of the posterior bony canal wall were moderately sunk in.
(8) The parameters of the air flow in the canal of the separator are established in a graphic way.
(9) It may be explained by an ipsilateral lesion of the posterior canal pathways.
(10) Interlamellar plasmodia are limited by 2 outer unit membranes which give rise to both single-and double-membraned pincytic canals.
(11) Ten patients have undergone abdominal proctocolectomy with the formation of an ileal reservoir anastomosed onto the anal canal using a stapling device.
(12) The hymen was not penetrated as a result of intromission and therefore the site of ejaculation would have been in the urogenital canal of the 4 primigravid elephants.
(13) The cytotoxic effects on cultured rat bone cells of newly-developed root canal sealers and commercially available sealers were compared.
(14) In the external ear canal, residual water from caloric testing or any other irrigation may act to simulate a conductive hearing loss and interfere with subsequent auditory brainstem response recording leading to increased latencies and reduced amplitudes.
(15) The surgeon must have an exact idea of this canal before undertaking operation for plastics of the hernial defect.
(16) All the canals open independently at the surface of the cuticle and the substance deposited there is a mixture of proteins and acid mucosubstances.
(17) The crossing points were investigated in 20 patients and in most cases they existed between 2 cm and 6 cm from the anterior border of the external auditory canal.
(18) It is concluded that the massive destruction of the normal anatomy in the lateral semicircular canal may be the morphological basis of a functional endolymphatic fistula for drainage of the endolymphatic hydrops.
(19) In the series of 50 acoustic neurinomas (AN) the internal auditory canal (IAC) diameter and the diameter difference between the tumor and non-tumor side are compared with the sizes of the AN.
(20) Myelography revealed no abnormality, although magnetic resonance imaging and computed tomography after myelography demonstrated a mass within the posterior aspect of the thoracic spinal canal associated with anterior displacement and compression of the spinal cord.
Meatus
Definition:
(n. sing. & pl.) A natural passage or canal; as, the external auditory meatus. See Illust. of Ear.
Example Sentences:
(1) The observed staining indicated that the epithelium of the external auditory meatus has a pattern of keratin expression typical of epidermis in general and the epithelium of the middle ear resembles simple columnar epithelia.
(2) For the management and prevention of the recurrent ascending infections long-term urinary disinfection and meticulous toilet of the external meatus are recommended.
(3) In addition, histopathologic examination revealed squamous epithelial hyperplasia in the vestibule; inflammation, epithelial necrosis, mucosal erosions, and squamous metaplasia of the respiratory epithelium in the anterior nose; and olfactory sensory cell loss in the dorsal medial meatus.
(4) So far we believe that loss of hearing caused during these operations is mainly due to the unfavorable location of the cochlear blood supply through the meatus.
(5) Blood at the urethral meatus was noted in only five patients, gross hematuria without metal blood in another three, and a displaced prostate on rectal exam was found in 10 cases.
(6) The purpose of this study was to analyze the results obtained with a surgical technique developed to prevent postoperative stenosis or total closure of the newly formed auditory meatus and to achieve at least serviceable hearing in the majority of cases.
(7) The cochlear summating potential (SP) preceding the auditory nerve compound action potential (AP) was elicited by broadband alternating condensation and rarefaction clicks and recorded by noninvasive electrodes from the external auditory meatus (EAM) of 60 volunteers of both sexes, 12 to 67 years old, who had normal hearing for age.
(8) The right petrous bone was hypoplastic and showed total superior dehiscence of the internal acoustic meatus.
(9) The observations allow the conclusion that during acute otitis media the duration of mastoiditis development reduced and many classical symptoms of mastoiditis, e. g. protrusion of the posterior-superior wall of the external acoustic meatus, profuse purulent discharge from the ear, hyperemia, swelling of the behind-the-ear area, occurred less frequently.
(10) A case is reported of angiomatous malformation involving the facial and vestibilocochlear nerves within the internal auditory meatus.
(11) There is no need for fenestration via the inferior meatus.
(12) Antibacterial ointment applied to the urethral meatus in females with recurrent urinary tract infections (UTIs) has been reported to decrease the incidence of UTIs.
(13) So the internal auditory meatus was packed with Gelfoam and muscle piece.
(14) Furthermore, the method is useful to evaluate the optimal therapy to restore ventilation in the case of an obstructed ostium demonstrated before and after surgical opening in the inferior meatus.
(15) In most of these ears the angle from the medial edge of a suboccipital craniectomy allowed the surgeon a direct view of the lateral part of the internal auditory meatus with good exposure of the transverse crest without his having to open the labyrinth.
(16) An excellent surgical result requires careful case selection, avoiding cases with thin or rigid ventral parameatal skin or a meatus too proximal or too wide.
(17) A serie of 20 dissections carried out in the anatomy Laboratory enabled us to make a close observation of the middle meatus of the nasal cavity.
(18) In the open meatus acoustic energy radiated by the bony walls becomes dissipated.
(19) The axis of the internal acoustic meatus to the horizontal plane in adults and postnatal changes.
(20) A terminal meatus was achieved in all cases; there were two fistulae and one meatal stenosis.