How Does Viagra Enhance Erectile Function of the Penis

question 99

Multiple Choice

How does Viagra enhance erectile function of the penis?

• A)by inhibiting nitric oxide release
• B)by inhibiting guanylyl cyclase activity
• C)by preventing cGMP production
• D)by inhibiting cGMP phosphodiesterase
• E)by inhibiting cGMP phosphatase

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A type of stock that gives its holders preference over common stockholders in terms of dividend payments and assets during liquidation.