In divergence:
A) Many presynaptic neurons synapse with one postsynaptic cell.
B) Dendrites diverge from the cell body to contact many presynaptic neurons.
C) The action potential initiated in the axon diminishes as it spreads into the axon terminals.
D) An axon branches to synapse with many cells so that activity in one neuron influences the excitability of many other cells.
E) Many axons spread out from one cell body.
Correct Answer:
Verified
Q42: Select the neuropeptide.
A)acetylcholine
B)dopamine
C)epinephrine
D)cholecystokinin
E)glycine
Q44: Which channel type is sensitive to serotonin?
A)voltage-gated
B)chemically-gated
C)mechanically-gated
D)acoustically-gated
E)none
Q53: Drugs may influence synaptic transmission by
A) altering
Q55: Which statement is incorrect?
A) Inhibitory synapses cause
Q57: A hypothetical postsynaptic neuron has three presynaptic
Q59: Neuromodulators
A) bind to receptors at nonsynaptic sites
B)
Q60: Presynaptic facilitation results from
A) alteration of calcium
Q61: Neuropeptides
A) are sometimes co-secreted along with classical
Q70: Threshold potential is the peak potential achieved
Q84: Action potentials can be summed.
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