The bronchi are inflamed and mucous cells lining the airway increase in number and excretion rate. The bronchial passageways become narrower and airflow to the alveoli decreases. The cells lining the bronchi are continuously inflamed and the mucous cannot be efficiently removed and eventually builds up within the airways. If the mucous is not removed, bacteria will remain in the lower airways a...

cialist in the medical critical care/pulmonary unit at Christiana Care Health System in Newark, Delaware. history of smoking along with chronic respiratory diseases such as cystic fibrosis, chronic obstructive pulmonary disease, asthma, and bronchiectasis. Other patient-related factors that may contribute include smoking, immobility, sedation, muscle weakness, and dehydration. A mucous plug occ...

The study was conducted on ten healthy buffalo calves. The labial glands were distributed mainly at the commissure of lips and some isolated lobes in upper and lower lips. The gland was not encapsulated and parenchyma was comprised of secretory units and duct system. The adenomeres (secretory units) were mainly mucous with some serous and mixed type. Few serous demilunes capping the mucous alve...

BACKGROUND AND PURPOSE The aim of this study was to investigate, in a tube model, how the speed of a mucous simulant was influenced by angle and different types of oscillations. METHOD Using a repeated-measures study design, the primary outcome measure was the mucous simulant speed calculated from the time taken for the mucous simulant to travel a distance of 10 cm. Ultrasonic gel diluted to ...

considerable information exists in the literature showing that expansive layer silicates are not the only clay minerals present in vertisols. however, the presence of a very high clay content dominated by fine clay, regardless of the clay type, together with the wetting and drying cycle in the soil can also produce a high shrink-swell potential. we studied some vertisols with diverse parent mat...

Nano-porous silicon were simply prepared from p-type single crystalline silicon wafer by electrochemical etching technique via exerting constant current density in two different HF-Ethanol and HF-Ethanol-H2O solutions. The mesoporous silicon layers were characterized by field emission scanning electron microscopy and scanning electron microscopy. The results demonstrate that the width of nano-p...

Epidermal, branchial and digestive mucous cells, and the gastric glands of larvae/postlarvae (from hatching until 45 days posthatching) of three fish species (two teleostean and a chondrostean) were investigated using conventional histochemical methods (periodic acid schiff -PAS-, diastase-PAS; alcian blue pH 0.5, 1 and 2.5) in order to distinguish neutral and acidic (carboxylated and sulphated...

The development of routine techniques for the isolation and in vitro maintenance of conducting airway epithelial cells in a differentiated state provides an ideal model to study the factors involved in the regulation of the expression of mucociliary differentiation. Several key factors and conditions have been identified. These factors and conditions include the use of biphasic culture techniqu...