It is thought that TENS may affect pain relief by causing release of endogenous opioids because naloxone
A) enhances the analgesic action of TENS.
B) inhibits the inflammation associated with TENS.
C) reduces the analgesic effect of TENS.
D) has no effect on TENS.

Question

Quizplus · Accepted Answer

Naloxone is an opioid antagonist, meaning it blocks the activity of opioids. If naloxone reduces the analgesic effect of TENS, it suggests that TENS may be affecting pain relief through the release of endogenous opioids.

It Is Thought That TENS May Affect Pain Relief by Causing