Questions: 10 1 point What is the effect of synaptic facilitation? A decrease in synaptic response after repeated stimulation An increase in synaptic strength due to residual calcium A long-term weakening of synaptic strength Removal of neurotransmitter receptors from the synapse

10 1 point What is the effect of synaptic facilitation? A decrease in synaptic response after repeated stimulation An increase in synaptic strength due to residual calcium A long-term weakening of synaptic strength Removal of neurotransmitter receptors from the synapse
Transcript text: 10 1 point What is the effect of synaptic facilitation? A decrease in synaptic response after repeated stimulation An increase in synaptic strength due to residual calcium A long-term weakening of synaptic strength Removal of neurotransmitter receptors from the synapse
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The answer is the second one: An increase in synaptic strength due to residual calcium.

Explanation for each option:

  1. A decrease in synaptic response after repeated stimulation: This describes synaptic depression, not facilitation. Synaptic facilitation involves an increase, not a decrease, in synaptic response.

  2. An increase in synaptic strength due to residual calcium: This is correct. Synaptic facilitation occurs when repeated stimulation leads to an accumulation of calcium ions in the presynaptic terminal, enhancing neurotransmitter release and increasing synaptic strength.

  3. A long-term weakening of synaptic strength: This describes long-term depression (LTD), which is not related to synaptic facilitation. Facilitation is a short-term increase in synaptic strength.

  4. Removal of neurotransmitter receptors from the synapse: This describes a mechanism of synaptic weakening or desensitization, not facilitation. Synaptic facilitation involves increased neurotransmitter release, not receptor removal.

In summary, synaptic facilitation is characterized by an increase in synaptic strength due to the accumulation of residual calcium in the presynaptic terminal.

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