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Acetylcholine
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Acetylcholine

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Questions and Answers

Which of the following is a true statement about muscarinic acetylcholine metabotropic receptors?

  • They are stimulated by muscarine and blocked by nicotine.
  • They are stimulated by muscarine and blocked by atropine. (correct)
  • They are stimulated by nicotine and blocked by atropine.
  • They are stimulated by nicotine and blocked by muscarine.

    • Which of the following is true about the effects of nicotine on attention and memory?

  • Nicotine improves attention and memory in nicotine-naive individuals starting at baseline. (correct)
  • Nicotine improves attention and memory in all individuals.
  • Nicotine has no effect on attention and memory.
  • Nicotine only improves attention and memory in nicotine addicts.

    • Which of the following is a correct statement about Botox?

  • Botox is used to treat chronic migraines by increasing muscle contraction.
  • Botox is used to treat Tourette's syndrome by causing muscle contractions.
  • Botox is an acetylcholine agonist that causes muscle paralysis.
  • Botox reduces excessive sweating by stimulating acetylcholine release. (correct)

    • Which of the following is NOT a role of acetylcholine in the central nervous system?

    <p>Planning of movement</p> Signup and view all the answers

    Where can major concentrations of acetylcholine be found in the central nervous system?

    <p>Dorsolateral pons, basal forebrain, and medial septum</p> Signup and view all the answers

    Which type of acetylcholine receptors are stimulated by nicotine and blocked by curare?

    <p>Nicotinic ionotropic receptors</p> Signup and view all the answers

    Which part of the nervous system is responsible for the release of acetylcholine as a neurotransmitter?

    <p>Peripheral nervous system</p> Signup and view all the answers

    What role does acetylcholine play in human movement?

    <p>It causes muscles to contract</p> Signup and view all the answers

    Which receptors are stimulated by nicotine and blocked by curare?

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

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