\"The bends\", or decompression sickness, can be prevented if a diver ascends to

Question

"The bends", or decompression sickness, can be prevented if a diver ascends to the surface of the ocean                             [ Select ]                       ["slowly", "quickly", "without the aid of oxygen"]         , to prevent bubbles of                              [ Select ]                       ["oxygen", "nitrogen", "carbonate", "carbon dioxide"]         gas from forming in the tissues. If left untreated, these bubbles can cause muscle and joint pain by blocking                              [ Select ]                       ["the trachea", "flow of lymphatic fluid back to the heart", "the esophagus", "blood vessels"]         .

Explanation / Answer

1. SLOWLY

2. NITROGEN (as in cylinder N2 is in high pressure and it is insoluble in blood)

3. BLOOD FLOW (bubble of N2 can block small blood vessel thus leading to ischemia and pain)

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