What inorganic gas has been shown to act as a second messenger that relaxes the smooth muscles of blood vessels? A)NO B)N₂O C)nitrous oxide D)CO E)N₂

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Nitric oxide (NO) is an inorganic gas that has been shown to act as a second messenger that relaxes the smooth muscles of blood vessels. This leads to vasodilation and increased blood flow to tissues. N₂O and N₂ are not real chemical compounds. Nitrous oxide (C) and CO (D) are also inorganic gases, but they do not have a role in vasodilation as second messengers.

What Inorganic Gas Has Been Shown to Act as a Second