2008 Pearson Education Inc The graph below shows the

Last updated: 7/12/2023

2008 Pearson Education Inc The graph below shows the membrane potential measured at the axon hillock of the postsynaptic neuron Each target indicates a change in the membrane potential at the axon hillock caused by a postsynaptic potential at one of the four synapses Summation occurs when two or more postsynaptic potentials overlap in time that is one postsynaptic potential begins before the membrane has returned to resting potential after a previous postsynaptic potential When such overlap occurs the membrane potential measured at the axon hillock is the sum of the two or more overlapping postsynaptic potentials Drag the labels onto the graph to indicate which presynaptic neuron produced each change in the axon hillock s membrane potential Assume that the same number of ligand gated ion channels opens at each synapse To review the effect of distance between the synapse and the axon hillock see Hint 2 Labels can be used once more than once or not at all View Available Hint s 1 membrane potential mv 0 action potential threshold at the axon hillock Reset Help