Neuromuscular Junction Quiz
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Questions and Answers

Which of the following is NOT a protein involved in the neuromuscular junction?

  • Synaptotagmin
  • Titin (correct)
  • Acetylcholinesterase
  • Dystrophin
  • What is the name of the neurotransmitter released at the neuromuscular junction?

  • Acetylcholine (correct)
  • Norepinephrine
  • Dopamine
  • Serotonin
  • Which ion is responsible for triggering the release of acetylcholine from the presynaptic neuron?

  • Chloride
  • Calcium (correct)
  • Potassium
  • Sodium
  • What is the name of the protein that anchors acetylcholine receptors to the muscle cell membrane?

    <p>Dystrophin</p> Signup and view all the answers

    Which enzyme breaks down acetylcholine in the synaptic cleft?

    <p>Acetylcholinesterase</p> Signup and view all the answers

    What is the name of the autoimmune disorder that targets acetylcholine receptors at the neuromuscular junction?

    <p>Myasthenia gravis</p> Signup and view all the answers

    Which of the following is responsible for triggering the release of acetylcholine from the presynaptic neuron?

    <p>Calcium ion</p> Signup and view all the answers

    What is the name of the protein that acetylcholine binds to on the muscle cell membrane?

    <p>Nicotinic receptor</p> Signup and view all the answers

    What is the name of the enzyme responsible for breaking down acetylcholine in the synaptic cleft?

    <p>Acetylcholinesterase</p> Signup and view all the answers

    Which of the following is required for muscle contraction to occur?

    <p>Both of the above</p> Signup and view all the answers

    What is the name of the autoimmune disorder that targets the nicotinic acetylcholine receptors at the neuromuscular junction?

    <p>Myasthenia gravis</p> Signup and view all the answers

    Which of the following is NOT a component of the neuromuscular junction?

    <p>Blood vessel</p> Signup and view all the answers

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