The synapses between rods and bipolar cells ...

Question

Accepted Answer

may be either excitatory or inhibitory because the bipolar neuron expresses either AMPA, GluR or mGluR at its postsynaptic sites

Answer

are inhibitory (in fact light produces inhibition of the bipolar cell)

Answer

may be either excitatory or inhibitory because the rod releases either glutamate or glycine at it presynaptic terminals

Answer

are excitatory (glutamate, AMPA/NMDA receptors)

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