What are opioids and what is their source?

(N/A) Opioids are drugs that bind to specific opioid receptors present in our central nervous system and gastrointestinal tract.
Opioids are derived from the latex of the poppy plant,$Papaver$ $somniferum$.
Opium is obtained by making incisions in the unripe fruit capsules of the poppy plant. The milky latex that exudes dries and turns into a brownish,sticky substance known as opium.
Morphine and codeine are potent pain-relieving drugs (analgesics) extracted from opium. Morphine is a very effective sedative and painkiller and is very useful in patients who have undergone surgery.