Physiology · Nervous System · Hard
Enkephalin
Meaning: A small natural opioid peptide in the brain and cord that inhibits pain transmission.
In practice: Enkephalin release in the dorsal horn helps dampen incoming pain signals.
Quick check
Two questions on related physiology words.
Which word means: The brain's ability to reorganise neural pathways in response to experience, learning, or injury.
Answer: Neuroplasticity
Which word means: All the chemical reactions that occur in the body to maintain life.
Answer: Metabolism
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