(1) Valvular stenoses of the bronchi and especially of the bronchioles in various types of primary pulmonary disease are of considerable importance etiologically.
(2) It was also found that bunitrolol in the dosages tested is a much more potent beta-blocking drug in the bronchi compared to practolol in the dosages tested were equivalent.
(3) It is suggested that lung ventilation takes place in the avian embryo in three distinct stages: the major air-ways become aerated, then respiratory movements begin and lastly the tertiary bronchi are slowly aerated.
(4) 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.
(5) The bronchi were involved more often than the trachea and the foreign body was located more frequently at the right bronchus (38 pt).
(6) 7 cases with bronchiectasis of left lower lobe and lingular segment were treated with left lower lobectomy and extirpation of the bronchi of lingular segment.
(7) Magnetic resonance (MR) imaging of the trachea was performed in twenty-one children with congenital or acquired narrowing of the trachea or main bronchi.
(8) These findings indicate structural abnormalities in the secretory apparatus of neuroendocrine cells in dysplastic bronchi and correlate with experimental observations of aberrant hormonal production associated with bronchial dysplasia.
(9) In the genesis of small airways obstruction (SAO) we have to consider two alterations with different prognoses: the first, in which the obstruction depends on a reduction of the diameters of the small bronchi (i.e.
(10) In two of the cases in which almost the whole lungs were studied on continuous slice images with thin slice high resolution CT, sub-sub-subsegmental bronchi could be easily delineated, except in for the lingular segment.
(11) These histologic changes were not observed in the recipient bronchi during acute rejection, nor were they seen in the donor and the recipient bronchi during lung infection without rejection.
(12) At 1 week after infection, mycoplasma cells were found in large numbers in the bronchi at the surface of bronchial epithelial cells and, in smaller numbers, in the alveoli where active phagocytosis by polymorphonuclear leukocytes (PMN) occurred.
(13) Histidine decarboxylase activity was not found in cells of nonpathogenic neisseria, obtained from bronchi of patients with infectious asthma.
(14) The present results indicate that the systemic (bronchial) circulation is the primary source of tracheal blood flow and that both the pulmonary and systemic circulations may contribute approximately 50% of the blood flow to the main bronchi in dog lungs.
(15) The three agonists provoked significant (p less than 0.05) bronchoconstriction at the level of the main bronchi when identical falls of FEV1 were achieved.
(16) In guinea pigs sensitized with 1 microgram ovalbumin together with 100 mg Al(OH)3, somatostatin levels were selectively increased up to two and 3 times in tissue extracts from trachea and bronchi, respectively, but not in lung as compared to controls.
(17) Diseased controls showed a high PD centrally which fell (became less negative) peripherally (trachea -15.8 mV (SEM 1.0), lobar bronchi -12.6 mV (1.2), segmental bronchi -9.8 mV (1.2].
(18) The consequence of these derangements is often widespread plugging of small bronchi and bronchioles.
(19) A 50% decrease was found in the ability of carcinogen-altered bronchi to act as a substrate for lipid peroxidation mediated by Adriamycin and an approximately 30% decrease for lipid peroxidation induced by t-butyl-hydroperoxide.
(20) Peak uptake values were found 5 min after Adriamycin administration, and the amounts of Adriamycin in normal and carcinogen-altered bronchi were found to be similar.
Bronchus
Definition:
(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.