 
			 
			MCQOPTIONS
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				| 1. | Why is it that inhaling nitric oxide reduces blood pressure only in the lung tissue and not elsewhere in the body*? | 
| A. | Because other body tissues use a different signaling molecule | 
| B. | Because nitric oxide cannot cross cell membranes and enter the blood | 
| C. | Because nitric oxide breaks down quickly and thus cannot travel far | 
| D. | None of the above | 
| Answer» D. None of the above | |