Autonomic Nervous System Chapter 15.1 Quiz
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Questions and Answers

What is the main function of the divisions of the Autonomic Nervous System?

  • Stimulate skeletal muscle contractions
  • Maintain homeostasis (correct)
  • Control voluntary muscle movements
  • Regulate conscious movements
  • Which division of the Autonomic Nervous System is associated with the 'fight or flight' response?

  • Somatic division
  • Parasympathetic division
  • Sympathetic division (correct)
  • Enteric division
  • Where does the sympathetic chain ganglia receive signals from?

  • Coccygeal nerves
  • Thoracic and superior lumbar nerves (correct)
  • Sacral nerves
  • Cranial nerves
  • What type of fiber extends from the sympathetic ganglion to the target effector?

    <p>Long, unmyelinated fiber</p> Signup and view all the answers

    Where do preganglionic fibers in the parasympathetic division lead to?

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

    What receives direct connection from preganglionic fibers in the sympathetic division to release molecules?

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

    What is the second signaling molecule in the adrenergic synapse?

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

    Which type of receptor does norepinephrine bind to in the adrenergic synapse?

    <p>Alpha receptor (3 types)</p> Signup and view all the answers

    In the autonomic system, what is the specific function of baroreceptors?

    <p>React to stretch stimuli in the aorta and carotid arteries</p> Signup and view all the answers

    What is the specific feature of the efferent branch in autonomic reflexes and homeostasis?

    <p>Relays signals directly to the target effector</p> Signup and view all the answers

    Which type of synapse is completely peripheral and elicits a local response?

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

    What conscious perception of autonomic sensation involves referred pain?

    <p>Perception reflecting autonomic sensation in one region but felt in another</p> Signup and view all the answers

    Which part of the brain is responsible for regulating autonomic and endocrine function?

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

    What effect does nicotine have on the autonomic nervous system?

    <p>Causes sympathetic increase in blood pressure</p> Signup and view all the answers

    Which drugs enhance adrenergic function by binding to receptors and increasing norepinephrine production and release?

    <p>Cocaine and caffeine</p> Signup and view all the answers

    Which pathway is responsible for communication in the hypothalamus?

    <p>Medial forebrain bundle and dorsal longitudinal fasciculus</p> Signup and view all the answers

    What is the role of the medulla in the autonomic nervous system?

    <p>Connects to cardiac accelerator nerves and vasomotor nerves</p> Signup and view all the answers

    What is the main effect of sympatholytic drugs?

    <p>Interrupts sympathetic activity</p> Signup and view all the answers

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