15. Natural opiates, opioid receptors

Question 1

Which are the 2 groups of natural opiates?

Answer 1

• Phenantrenes
• Benzil-isoquinolines

Question 2

Which are the phenantrenes?

Answer 2

• Morphine
• Codeine
• Thebaine

Question 3

Which are the benzil-isquinolines?

Answer 3

• Papaverine
• Narcotine/noscapine
• Narceine

Question 4

Which are the endogenous opioid peptides?

Answer 4

• Enkephalins: d>>>>µ
• Endorphins: µ = d
• Dynorphins: k
• Endomorphins: µ