(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.
Fossa
Definition:
(n.) A pit, groove, cavity, or depression, of greater or less depth; as, the temporal fossa on the side of the skull; the nasal fossae containing the nostrils in most birds.
Example Sentences:
(1) The 38 control fetuses had normal-appearing posterior fossae.
(2) These cases show that an examination of the whole neuraxis is as important in patients with midline posterior fossa cysts as it is in patients with developmental syringomyelia or Chiari I malformation.
(3) For the case described by the author primary tearing of the chiasma due to sudden applanation of the skull in the frontal region with burstfractures in the anterior cranial fossa is assumed.
(4) In 5 of the 7 patients with an initially abnormal pituitary fossa, serial radiological studies revealed remodelling in 3.
(5) (b) abnormal morphologic of the glenoid fossa, mandibulars condyle and the neck of mandibula were seen.
(6) The blood flow velocity waveform recorded noninvasively from the brachial artery in the antecubital fossa was used as basis for quantitatively estimating a stroke flow index.
(7) This can be combined with a middle fossa approach in patients with a positive Schirmer's test.
(8) Because of the inherent limitations of computed tomography in the visualization of posterior fossa structures, MR imaging should be considered the initial screening procedure in the assessment of patients with trigeminal neuralgia.
(9) To identify the origin of scalp-recorded far-field negativity of short-latency somatosensory evoked potentials to median nerve stimulation (designated N18), direct records were made from the thalamus and ventricular system during 4 stereotaxic and 3 posterior fossa operations.
(10) Two term newborn infants born by frank breech delivery had posterior fossa hemorrhage diagnosed by CT scan within the first 72 hours of life and underwent successful surgical drainage of hematoma.
(11) Warts were confined to the lips in 27 (56%) of 48 patients with meatal warts; in an additional 5 patients with meatal warts the warts arose from deep in the fossa navicularis and in 16 patients with meatal warts there were additional warts in the fossa navicularis invisible on clinical examination.
(12) A comparative cephalometric and tomographic study prior to the treatment and after completion of the treatment revealed the following results: an improvement in the occlusal relationships due to both skeletal (an anterior mandibular displacement and an increase in the mandibular length) and dentoalveolar changes; it was possible to produce a growth stimulation of the mandibular condyle associated with a translation of the glenoid fossa by using an elastic activator; there was a direct correlation between the effects of the treatment and the age period of the patients (mixed dentition).
(13) Epistaxis was common in tumors of the ethmoid sinus and nasal fossae, while pain was related to lesions of the maxillary sinus.
(14) Eleven of 15 patients had middle cranial fossa involvement; cavernous sinus extension was observed in six patients.
(15) Stab wounds to the temporal fossa appear as a characteristic clinical entity.
(16) Our impression is that preoperative carotid artery occlusion and a middle fossa approach for tumor resection can be performed in a young patient with acceptable morbidity and at least short-term benefit.
(17) The other structures or regions that were involved, in decreasing order of frequency, were the sphenoid sinus (26.7%), nasal fossa (21.8%), and ethmoid sinus (18.3%).
(18) The association of an arachnoidal cyst in the middle cranial fossa with a subdural haematoma or intracystic bleeding is emphasised.
(19) At the same time the data are obtained on variations in topography of the chorda tympani at various form of the intratemporal fossa.
(20) A patent cochlear aqueduct indicated on computed tomography scan was found and repaired through a posterior cranial fossa approach.