QuestionSBA
QuestionChoice
This describes spatial inhibition. This is a method by which an inhibitory synapse can make action potential firing less likely without negating signals from separate dendrites.
10001169
d
Inhibitory synapses on different dendrites to excitatory synapses subtract from their excitatory potential
QuestionChoice
This describes shunting inhibition. This is a powerful way for excitatory potentials to be diminished, effectively turning the dendrite into a NOT logic gate in which sufficient excitatory synapses must be active, but not the inhibitory synapse, for an action potential to be stimulated.
10001166
a
Inhibitory synapses which are closer to the soma than excitatory synapses on the same dendrite divide the excitatory potential
QuestionChoice
This describes pre-synaptic inhibition. This is a powerful method by which an inhibitory synapse can entirely stop the chance of an action potential firing (but requires accurate timing).

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10001170
e
Inhibitory synapses towards the end of an axon hyperpolarise the synaptic terminal as the action potential reaches it, preventing neurotransmitter release
QuestionChoice
This describes temporal summation. This is the method by which strong signals through a smaller number of weak excitatory synapses can sum together to stimulate action potentials.
10001168
c
Multiple excitatory potentials transmitted rapidly after one another sum at the soma
QuestionChoice
This describes spatial summation. This is the method by which multiple weak excitatory synapses from different sources can sum together to stimulate action potentials.
10001167
b
Multiple excitatory synapses on different dendrites sum their excitatory potentials at the soma
Concept
Chapter
2693
3826
Central and peripheral nervous system
Topic
152
Neuroscience
12780
Which of the following describes shunting inhibition?
a