Question

Release of the neurotransmitter_______produces________, making a neuron________to fire an action potential.? C. GABA; IPSPs; less likely D. norepinephrine; IPSPs; more likely E. GABA; EPSPs; more likely

I believe it is C but im not sure

Answer 1

Yes you are absolutely correct!

the reason is `GABA` which satnds for Gamma Amino Butyric Acid is an inhibitory neurotransmitter whose release leads to opening of `Cl^(-)` channels,which results in hyperpolarization f a neuron,thereby producing IPSPs(Inhibitory Post Synaptic Potentials) and they oppose the production of action potential by depolarization.

One example of such cells relesing `GABA` in our body is the Renshaw cells in spinal cord,which inhibits abnormal an unnecessary movement.