Final answer:
Endomorphins act like morphine, binding to the μ-opioid receptors and inhibiting pain perception, functioning as part of the body's natural analgesic system.
Step-by-step explanation:
The neurotransmitter that acts like morphine to inhibit pain perception is called endomorphin. Endomorphins are part of the body's endogenous opioid system, consisting of peptides that act as neurotransmitters. They are capable of binding to the μ-opioid receptor, which is the same receptor to which morphine binds, thereby inhibiting pain perception. This interaction mimics the action of morphine without the introduction of external drugs.
Furthermore, these neurotransmitters take part in natural pain relief by blocking the neurotransmitter reuptake or interfering with the voltage-gated calcium ion channels, thereby modulating pain signals. It is important to note that while they provide pain relief, endomorphins and other substances that act on opioid receptors can be associated with a high potential for abuse.