cochlear canaliculus a small canal in the petrous part of the temporal bone that interconnects the scala tympani with the subarachnoid space; it houses the perilymphatic duct and a small vein. dental canaliculi minute channels in dentin, extending from the pulp cavity to the overlying cement and enamel.
Lung infarction. Lung infarction, death of one or more sections of lung tissue due to deprivation of an adequate blood supply. The section of dead tissue is called an infarct. The cessation or lessening of blood flow results ordinarily from an obstruction in a blood vessel that serves the lung.
A collapsed lung occurs when the air behind a thick mucous plug in the bronchial tubes gets absorbed. Once this occurs there is only a finite time (1-3 days) to re-expand the lung, otherwise it can get infected and could possibly stay permanently collapsed.n most cases, the patient needs to be placed in a way that the collapsed lung is on top to facilitate drainage. This is combined with aggressive chest physiotherapy and encouragement to cough frequently to re-expand the collapsed lung tissue. Deep breathing exercises are also part of the therapy.