(n.) One of the subdivisions of the trachea or windpipe; esp. one of the two primary divisions.
Example Sentences:
(1) Currently, photodynamic therapy is under FDA-approved clinical investigational trials in the treatment of tumors of the skin, bronchus, esophagus, bladder, head and neck, and of gynecologic and ocular tumors.
(2) The mean length of the right main bronchus was found to be 1.09 cm (range from 0 to 2.9 cm).
(3) The bronchi were involved more often than the trachea and the foreign body was located more frequently at the right bronchus (38 pt).
(4) On bronchogram and pulmonary arteriogram, the trachea and right bronchus were compressed and shifted with the anomalous origin of left pulmonary artery which originated from the right pulmonary artery and passed between the trachea and esophagus.
(5) Morphometric study of mouse bronchus-associated lymphoid tissue (BALT) using an image analyser and histological sections at close and regular intervals was carried out in lungs of control and influenza infected mice two to three months old.
(6) Biological activity has been determined on the rabbit pulmonary artery (RPA) and hamster trachea (HT) preparations, chosen as representative of the NK-2A and NK-2B receptor subtypes, respectively, and on the rabbit bronchus (RB), guinea-pig bronchus (GPB), human urinary bladder (HuUB), human ileum (HuI) and human colon (HuC) preparations to verify the previously described NK-2A character of these tissues.
(7) Radionuclide studies of regional perfusion and ventilation proved more sensitive and more specific than tests of overall lung function for the functional assessment and follow-up of patients with unresectable carcinoma of the bronchus.
(8) A defect was created in the thoracic trachea in nine piglets (10 kg) by excising a segment from the entire thoracic trachea proximal to the right upper lobe bronchus (3 to 3.5 cm in length) and 30% of the circumference in width (1 to 1.5 cm).
(9) Significantly increased standardized mortality ratios were determined for cancer of the trachea, bronchus, and lung for the entire cohort.
(10) In the middle lobe, a medial subsegmental bronchus of a lateral segmental bronchus and a superior and inferior subsegmental bronchus of a medial segmental bronchus are always located medial to the corresponding artery.
(11) In conclusion, obliteration of the inner margin of the central vein and the opacity that decreased the radiolucency extending to the peripheral side of the upper lobe bronchus are strongly suggestive of interlobar lymph node enlargement.
(12) Fatale haemoptysis occurred as a result of circumferential caustic erosion to the right intermediate bronchus caused by a tablet of ferrous sulphate which remained in contact for 4 days.
(13) Endothelin (ET)-like immunoreactivity (-LI) was detected in the human cardiopulmonary system, with the highest levels being found in the left anterior descending coronary artery, followed by the lung, right atrium, pulmonary artery, bronchus, pulmonary vein and left ventricle.
(14) The authors present the case of a patient with a carcinoid tumor of the left main bronchus.
(15) Aspiration of foreign material may lead to a localised lesion which simulates carcinoma of the bronchus both clinically and radiographically.
(16) Lobectomy with sleeve excision of the bronchus and the pulmonary artery was done in 3 patients, of which one had bilobectomy plus one segmentectomy with segmental bronchoplasty, lobectomy with wedge excision of the bronchus and the pulmonary artery in 2, lobectomy with wedge excision of the bronchus and sleeve excision of the pulmonary artery in 2, lobectomy with sleeve excision of the bronchus and wedge excision of the pulmonary artery in 1, and regular lobectomy with sleeve excision of the pulmonary artery in 1.
(17) Leiomyoma of the trachea and bronchus is a rare tumor.
(18) We report a case of inflammatory polyp in a male patient, which was totally obstructing the left main bronchus but could be removed by simple endoscopic traction.
(19) This study investigated the effects of neurokinin A (NKA) on cholinergic neural responses in human bronchus.
(20) Exclusion from external ventilation was performed in animal experiments by instillation of Ethibloc, an amino acid glue, in one main bronchus to create an atelectasis.
Trachea
Definition:
(n.) The windpipe. See Illust. of Lung.
(n.) One of the respiratory tubes of insects and arachnids.
(n.) One of the large cells in woody tissue which have spiral, annular, or other markings, and are connected longitudinally so as to form continuous ducts.
Example Sentences:
(1) Aplasia of the trachea associated with multiple congenital anomalies is described in a stillborn male foetus with single umbilical artery.
(2) This was worsened by the right side compression of trachea end part, due to the abnormal left pulmonary artery as demonstrated by pulmonary angiography.
(3) Tracheal mucus transport rate (TMTR) and quantitative clearance of aerosolized Escherichia coli from the trachea, lung, and air sac were measured in healthy unanesthetized turkeys and in turkeys exposed by aerosol to a La Sota vaccine strain of Newcastle disease virus (NDV).
(4) Defects in the posterior one-half of the trachea, up to 5 rings long, were repaired, with minimal stenosis.
(5) Haemodynamic changes (supraventricular tachycardia, decreases in arterial pressure) were observed during laryngoscopy and intubation of the trachea in a patient receiving nifedipine and verapamil.
(6) General anaesthesia with apneic oxygenation may offer the ENT surgeon increased possibilities of exploration and operation at the level of the larynx and trachea, but owing to its biological consequences, it should be used only with circumspection and its indications should be totally justified, for acts of limited duration.
(7) Replacement of bath Na+ by choline decreased the PD of tracheas by 85% but did not change alveolar PD in the presence or absence of bumetanide.
(8) Compared to related compounds, N-nitrosobis(2-hydroxypropyl)amine and N-nitrosobis(2-acetoxy-propyl)amine which are also pancreatic carcinogens, BOP induced only a few neoplasms of the lung, liver, and kidney and none in the nasal cavity, larynx, and trachea.
(9) Experiments were conducted in a group of pigs to determine the ontogeny of antigen specific IgA in the trachea.
(10) Although they were born at different periods of the year, the calves in all three groups had similar bacterial loads in their noses and tracheas when they were 1 day old (P greater than 0.05).
(11) In one patient, a minitracheostomy tube perforated the posterior wall of the trachea, resulting in pneumomediastinum.
(12) The trachea and the bronchial tree (first through seventh order branches) both synthesized alpha1(II) chains.
(13) The respiratory functions of the oropharynx, larynx, and trachea of normal human fetuses in utero were explored by means of real-time, two-dimensional ultrasonography combined with color-flow and spectral Doppler analysis.
(14) The blood flow contributions and drainage patterns of the pulmonary and systemic circulations in the upper airways (trachea and main bronchi) were assessed in anesthetized dogs by injecting 15-micron radiolabeled microspheres into the right and left heart, respectively.
(15) There were no differences between boys and girls until age 14, when girls' tracheas stopped growing.
(16) The bronchi were involved more often than the trachea and the foreign body was located more frequently at the right bronchus (38 pt).
(17) In contrast, the cat trachea was unresponsive to histamine and prostaglandin F2alpha and did not exhibit an intrinsic tone.
(18) All four requirements were experimentally verified in calf trachea.
(19) Magnetic resonance (MR) imaging of the trachea was performed in twenty-one children with congenital or acquired narrowing of the trachea or main bronchi.
(20) Exposure to 5000 ppm SO2 rapidly caused death in all birds with cannulated tracheae and in 4 of 5 birds with an intact respiratory system; one bird in each series of experiments died when exposed to 1000 ppm.