What are differences and similarities between a synapse and a neuromuscular junction?

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Sep 19, 2016

Answer:

See explanation.

Explanation:

Differences:

  • NMJ is always Acetylcholine, while a synapse is only sometimes Acetylcholine
  • A synapse is a junction between two neurons, while an NMJ is a junction between a motor neuron and a skeletal muscle fiber
  • A synapse may be excitatory or inhibitory, while an NMJ is always excitatory

Similarities:

  • Axon terminals in both store chemical messenger
  • The resulting change in membrane potential in both cases is a graded potential
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