Nerves

Question 1

What the effect of organophosphates on the transmission of impulses

Answer 1

Act as cholinesterase inhibitors, preventing the hydrolysis of acetylcholine in the postsynaptic neurone

Results in continuous stimulation of the neurone
Commonly found in insecticides

Question 2

How do psychoactive drugs affect the transmission of impulses?

Answer 2

• Excitatory drugs

- Stimulate the release of neurotransmitters