Question 1: A member of the "Blues" gang was rushed into an emergency room after receiving a knife wound in the left side of his thorax. The diagnosis was pneumothorax and a collapsed. Explain exactly (a) why the lung collapsed, and (b) why only one lung (not both) collapsed.
Question 2: Harry, the swimmer with the fastest time on the Springfield College swim team. routinely hyperventilates before a meet, as he says, "to sock some more oxygen into my lungs so I can swim longer without having to breathe." First of all, what basic fact about oxygen loading has Harry forgotten (a lapse leading to false thinking)? Second, how is Harry jeopardizing not only his time but his life?