Endorphin release causes -: (A) Analgesia, (B) Allodynia, (C) Hyperalgesia, (D) None of the above
Answer is A. Ans. is 'a' i.e., Analgesia o Primary action of endorphin (b-endorphin) is to inhibit pain.o Neurons containing b--endorphin descend from the hypothalamus to terminate on periaquenductal gray matter of midbrain. Periaqueductal gray matter send enkephalinergic and dynorphinergic neuron to medulla to inhibit pain by stimulating raphe nucleus.