Neuroscience Chapter 15.3 Quiz
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Neuroscience Chapter 15.3 Quiz

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Questions and Answers

Which division of the autonomic nervous system is responsible for the 'rest and digest' response?

  • Sympathetic division
  • Parasympathetic division (correct)
  • Enteric division
  • Celiac division

    • Where do sympathetic signals originate from in the thoracolumbar system?

  • Lumbar and sacral nerves
  • Sacral and coccygeal nerves
  • Thoracic and superior lumbar nerves (correct)
  • Cervical and sacral nerves

    • What type of fiber is the preganglionic fiber in the sympathetic division?

  • Long and unmyelinated
  • Short and myelinated (correct)
  • Short and unmyelinated
  • Long and myelinated

    • Which part of the autonomic nervous system receives input from both the sympathetic and parasympathetic divisions?

    <p>Organs and systems</p> Signup and view all the answers

    Where do preganglionic fibers in the parasympathetic division lead to?

    <p>Terminal ganglia</p> Signup and view all the answers

    What structure gets a direct connection from preganglionic fibers to release molecules in the sympathetic division?

    <p>Adrenal medulla</p> Signup and view all the answers

    Which signaling molecule is the second signaling molecule in the adrenergic synapse?

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

    What are the 2 types of synapses mentioned in Chapter 15.1?

    <p>Cholinergic and adrenergic</p> Signup and view all the answers

    In the sympathetic nervous system, which type of adrenergic receptor does norepinephrine act on?

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

    What type of reflex has a completely peripheral, local response with the synapse in the ganglia?

    <p>Short reflex</p> Signup and view all the answers

    What would the heart rate be without the parasympathetic signal to slow it down?

    <p>$100$ bpm</p> Signup and view all the answers

    Which type of synapse involves the release of Ach to nicotinic or muscarinic receptors?

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

    Which type of drug enhances adrenergic function by binding to receptors, increasing norepinephrine production and release, and/or may block removal of norepinephrine?

    <p>Sympathomimetic drug</p> Signup and view all the answers

    What is the main effect of nicotine on the autonomic nervous system?

    <p>Causes vascular tone to be more sympathetic</p> Signup and view all the answers

    Which substance is produced by the body to interact with a receptor?

    <p>Endogenous chemical</p> Signup and view all the answers

    What is the role of sympatolytic drugs in relation to the autonomic nervous system?

    <p>Block adrenergic receptors</p> Signup and view all the answers

    What is the effect of sympathomimetic drugs on norepinephrine production and release?

    <p>Increase norepinephrine production and release</p> Signup and view all the answers

    Which substance introduced from outside the body is considered an exogenous chemical?

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

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