Types of Neurotransmitters
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Questions and Answers

What is the result of an excitatory postsynaptic potential (EPSP)?

  • Small local hyperpolarization
  • Small local depolarization (correct)
  • Cl- ions entering the cell
  • Transmitter binding to presynaptic autoreceptors

    • What is the result of an inhibitory postsynaptic potential (IPSP)?

  • Small local hyperpolarization (correct)
  • Small local depolarization
  • Na+ ions entering the cell
  • Transmitter binding to presynaptic autoreceptors

    • How are EPSPs and IPSPs summed at the axon hillock?

  • Only spatially
  • Only temporally
  • By binding to postsynaptic autoreceptors
  • Both spatially and temporally (correct)

    • What happens when an action potential travels down an axon to the axon terminal?

    <p>Voltage-gated calcium channels open and Ca2+ enters the axon terminal</p> Signup and view all the answers

    What is the sequence of transmission at chemical synapses?

    <p>Voltage-gated calcium channels open and Ca2+ enters, then synaptic vesicles fuse with membrane and release transmitter into the cleft</p> Signup and view all the answers

    What does calcium signal in the context of synaptic transmission?

    <p>Inhibition of neurotransmitter release from the presynaptic neuron</p> Signup and view all the answers

    How does information transfer between neurons at a synapse?

    <p>By diffusion of neurotransmitters across the synaptic cleft</p> Signup and view all the answers

    Which neurotransmitter is the most widespread inhibitory transmitter?

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

    Which type of neurotransmitter serves as retrograde transmitter?

    <p>Gas neurotransmitters</p> Signup and view all the answers

    What are the examples of amine neurotransmitters mentioned in the text?

    <p>Acetylcholine, dopamine, serotonin</p> Signup and view all the answers

    What is the characteristic movement during a tonic-clonic seizure?

    <p>Slow and rhythmic contractions</p> Signup and view all the answers

    Which type of seizure is characterized by generalized rhythmic brain activity without unusual muscle movements?

    <p>Absence seizures</p> Signup and view all the answers

    What term was previously used to refer to absence seizures?

    <p>Petit Mal</p> Signup and view all the answers

    What is the most common type of seizure in kids and teens?

    <p>Complex partial seizures</p> Signup and view all the answers

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