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This Concept Map, created with IHMC CmapTools, has information related to: meeting wk 2 NP, exerts pressure on the medistinum decreases venous return to R atrium, as chest wall expands during inspiration, it no longer pulls the lungs with it as a result the lung cannot expand and collapses due to its elastic properties while the chest wall expands due to its natural properties, reduced CO contribute to hypotension, the lung cannot expand and collapses due to its elastic properties while the chest wall expands due to its natural properties causes collapse of left lung, pleural space as a result fluid disrupts interaction between membranes and they no longer fully adhere to each other, O2 saturation of 70 % hypoxia blue and cold fingers and toes, alveolar pressure becaomes greater than atmospheric pressure because it is compressed by elastic forces of the lungs reverses gradient air flows out of the lungs, several broken ribs on left anterior chest causes rupture of the visceral pleura, air rushes from inside the lung into the parietal space raising its pressure to 0 or positive values as a result fluid disrupts interaction between membranes and they no longer fully adhere to each other, collapse of left lung contributes only hearing heart sounds R of sternum, exerts pressure on the medistinum compresses the epicardial sac decreases ventricular filling ie preload, collapse of left lung shunting of blood to R lung overall dicreased O2 gas exchange, Palv = atmoaspheric pressure which is 0 and Pleural pressure is negative because of opposing forces of the lungs trying to collapse and the chest wall trying to expand inspiration contraction of inspiratory muscles causes volume of thorax to increase, cardiac output causes blue and cold fingers and toes, pleural space which dulls heart sounds, venous return to R atrium causes build up blood and pressure in the jugular veins, several broken ribs on left anterior chest causes rupture of intercostal vessels, several broken ribs on left anterior chest causes rupture of parietal pleura, collapse of left lung initial trauma caused a one way valve that only allows air to pass only from the lungs into parietal space with each inspiration cycle, the air that has been able to be inspired escapres through the valve and accumulates in the parietal space., car crash caused several broken ribs on left anterior chest