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BIO NMDCAT Neurons
nmdcat.online July 7, 2026

A nerve impulse arriving at an axoaxonic synapse typically functions to

A. Produce a large muscle contraction
B. Modulate the amount of neurotransmitter released by the presynaptic neuron
✓
C. Directly open ligand-gated sodium channels on dendrites
D. Induce immediate apoptosis of the target cell

📝 Explanation

Axoaxonic synapses occur when one axon terminal synapses onto another axon terminal. They regulate (facilitate or inhibit) the amount of calcium that enters the second terminal, modulating neurotransmitter release.

📖 Additional Information

  • Produce a large muscle contraction
  • Modulate the amount of neurotransmitter released by the presynaptic neuron
  • Directly open ligand-gated sodium channels on dendrites
  • Induce immediate apoptosis of the target cell

Axoaxonic synapses occur when one axon terminal synapses onto another axon terminal. They regulate (facilitate or inhibit) the amount of calcium that enters the second terminal, modulating neurotransmitter release.

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