Which of the following statements about chemical synapses is FALSE? Neurotransmi

Question

Which of the following statements about chemical synapses is FALSE?

Neurotransmitters that bind to receptors controlling excitatory membrane channels increase the tendency to develop action potentials. The closer the synapse is to the base of the receiving cell's axon, the stronger the effect. Neurotransmitters that bind to receptors controlling inhibitory membrane channels decrease the tendency to develop action potentials. Receiving neurons receive either inhibitory or excitatory signals, but not both.

Explanation / Answer

Answer: Option D

EXPLANATION: Through action potential a neuron transports its information. Neurotransmitters are released when nerve impulse arrives at the synapse, which influence another (postsynaptic) neuron. The postsynaptic neuron may receive inputs from many additional neurons, both excitatory and inhibitory. A summation of excitatory and inhibitory occurs, and if the net effect is inhibitory, the neuron will be less likely to generate an action potential, and if the net effect is excitatory, the neuron will be more likely to fire.

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