Which endogenous ligand is primarily associated with mu receptors?

Prepare for the Anesthesia Pharm Exam with flashcards and multiple choice questions. Each question offers hints and explanations to enhance your understanding. Get ready for your test!

Multiple Choice

Which endogenous ligand is primarily associated with mu receptors?

Explanation:
Mu receptors are most strongly activated by endorphins, especially beta-endorphin. Endorphins have the highest affinity for mu receptors and mediate analgesia and feelings of euphoria. Enkephalins primarily target delta receptors (with some mu affinity), dynorphins prefer kappa receptors, and Substance P is a non-opioid neuropeptide involved in pain signaling. So the endogenous ligand most closely associated with mu receptors is endorphins.

Mu receptors are most strongly activated by endorphins, especially beta-endorphin. Endorphins have the highest affinity for mu receptors and mediate analgesia and feelings of euphoria. Enkephalins primarily target delta receptors (with some mu affinity), dynorphins prefer kappa receptors, and Substance P is a non-opioid neuropeptide involved in pain signaling. So the endogenous ligand most closely associated with mu receptors is endorphins.

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