Step 1: Understanding the Concept:
Opioids are drugs that bind to specific opioid receptors in the central nervous system and gastrointestinal tract.
Step 2: Detailed Explanation:
The main source for natural opioids is the Opium poppy.
Its scientific name is Papaver somniferum
The drug is obtained by extracting the latex from the unripe capsules (seed pods) of the plant. Morphine is then extracted from this latex.
Step 3: Final Answer:
Scientific Name: Papaver somniferum. Part: Latex.