Question

Natural pain killers produced by nerve cells of brain are

• A. Encephalins
• B. Endorphins
• C. Interferons
• D. Dopamines

Answer 1

The correct option is A Encephalins

• Opioid peptides produced by the body are encephalins, B-endorphin, and dynorphins.
• Encephalin is a pentapeptide involved in regulating nociception in the body.
• The encephalins are termed endogenous ligands, as they are internally derived and bind to the body's opioid receptors.
• Encephalin is also considered a neuropeptide, which in the human body performs as an important signalling molecule in the brain.
• Encephalins are found in high concentration in the brain as well as in the cells of the adrenal medulla
• In response to pain, norepinephrine, a hormone that is activated in fight-or-flight response is released along with endorphins. .Hence, Natural pain killers produced by nerve cells of the brain are Encephalins.

So, the correct answer is 'Encephalins'.