| pressure collapse | Pulmonary collapse due to external compression of the lung, as by a pleural effusion or pneumothorax. (05 Mar 2000) |
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| absorption collapse | Pulmonary collapse due to rapid complete obstruction of a large bronchus. (05 Mar 2000) |
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| massive collapse | Relatively sudden atelectasis of an entire lung or of a lobe. (05 Mar 2000) |
| growth cone collapse | <cell biology> Loss of motile activity and cessation of advance by growth cones. There are now thought to be specific molecules that inhibit the motility of particular growth cones and are important in establishing correct pathways in developing nervous systems. See: axon pathfinding. (18 Nov 1997) |
| circulatory collapse | Failure of the circulation, either cardiac or peripheral. (05 Mar 2000) |
| collapse | 1. A state of extreme prostration and depression, with failure of circulation. 2. Abnormal falling in of the walls of any part of organ. Origin: L. Collapsus (18 Nov 1997) |
| collapse delirium | Delirium caused by extreme physical depression induced by a shock, profuse haemorrhage, exhausting labour, etc. (05 Mar 2000) |
| collapse of dental arch | Movement of teeth to fill a space which would normally be filled by another, missing tooth, creating a malpositioning of adjacent and opposing teeth. (05 Mar 2000) |
| collapse therapy | Surgical treatment of pulmonary tuberculosis whereby the lung is totally or partially, temporarily or permanently, immobilised. The procedure was based on the popular concept that collapsing the affected portion of a tuberculous lung allowed the infected area to rest and thereby recover. at the beginning of the 20th century artificially induced pneumothorax (pneumothorax, artificial) was popular. Later a variety of other techniques was used to encourage collapse of the infected portion of the lung: unilateral phrenic nerve division, pneumonolysis, pneumoperitoneum (pneumoperitoneum, artificial), and thoracoplasty. Collapse therapy has declined since the advent of antitubercular chemotherapy. (12 Dec 1998) |
| pulmonary collapse | Secondary atelectasis due to bronchial obstruction, pleural effusion or pneumothorax, cardiac hypertrophy, or enlargement of other structures adjacent to the lungs. (05 Mar 2000) |
| abdominal pressure | Pressure surrounding the bladder; estimated from rectal, gastric, or intraperitoneal pressure. (05 Mar 2000) |
| absolute pressure | Pressure measured with respect to zero pressure. Compare: gauge pressure. (05 Mar 2000) |
| acoustic pressure | In ultrasound, the instantaneous value of the total pressure minus the ambient pressure; unit is pascal (Pa). (05 Mar 2000) |
| air pressure | The force per unit area that the air exerts on any surface in contact with it. Primarily used for articles pertaining to air pressure within a closed environment. (12 Dec 1998) |
| atmospheric pressure | The pressure at any point in an atmosphere due solely to the weight of the atmospheric gases above the point concerned. (12 Dec 1998) |
| back pressure | Pressure exerted upstream in the circulation as a result of obstruction to forward flow, as when congestion in the pulmonary circulation results from stenosis of the mitral valve or failure of the left ventricle. (05 Mar 2000) |