Electrophysical Agents quizzes
How touch and electrical stimulation influence nerve signals, and why rubbing a sore spot can ease pain.
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From Electrophysical Agents: Why Rubbing a Bump Eases the Pain
How can a badly injured athlete sometimes feel little pain until after the game?
- Pain signals travel only when the body is still
- Injured nerves need hours before they can fire
- The brain can block pain via descending pathways
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Answer: The brain can block pain via descending pathways
Brain regions can send signals down the spinal cord that suppress incoming pain, especially during stress, focus or high arousal.
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