The Mechanism of Action of the Counterirritant Capsaicin Is Thought

question 8

Multiple Choice

The mechanism of action of the counterirritant capsaicin is thought to involve:

• A) vasoconstriction of skin blood vessels.
• B) a stimulation of opioid receptors.
• C) an interference in the release of substance P.
• D) a softening and loosening of the outer layers of the skin.

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Implicit Cost

A cost that does not require the outlay of money; it is measured by the value, in dollar terms, of forgone benefits.

Explicit Cost

A cost that requires an outlay of money.

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Revenue minus the opportunity cost of resources used; usually less than the accounting profit.