Autonomic Nervous System Quiz
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Questions and Answers

What are the two parts of the nervous system mentioned in the text?

  • Somatic and parasympathetic
  • Somatic and autonomic (correct)
  • Autonomic and sympathetic
  • Sensory and motor

    • What is the function of the parasympathetic division of the ANS?

  • Dilate bronchioles and increase blood flow to muscle
  • Release epinephrine and norepinephrine
  • Dilate eyes and reduce blood flow to digestive organs (correct)
  • Activate sweat glands and increase blood pressure

    • Which ganglia are associated with the enteric nervous system in the sympathetic division?

  • Superior mesenteric, inferior mesenteric, and celiac (correct)
  • Thoracolumbar, celiac, and sacral
  • Cervical, thoracic, and lumbar
  • Chain, collateral, and vertebral

    • Where are sympathetic axons myelinated according to the text?

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

    What is the role of the amygdala in the brain?

    <p>Influencing the hypothalamus based on emotional states</p> Signup and view all the answers

    What is the impact of nicotine on blood vessels?

    <p>It increases blood pressure due to sympathetic stimuli</p> Signup and view all the answers

    What do sympatholytic drugs like Beta blockers do?

    <p>Reduce the sympathetic response</p> Signup and view all the answers

    How does the hypothalamus communicate with the forebrain?

    <p>Through the medial forebrain bundle</p> Signup and view all the answers

    What is the function of the sympathetic fibers activating chromaffin cells?

    <p>Release norepinephrine and epinephrine</p> Signup and view all the answers

    Which cranial nerve carries fibers to control pupil size?

    <p>CN III</p> Signup and view all the answers

    What type of synapses are activated by acetylcholine or norepinephrine and epinephrine?

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

    Which receptors are activated by nicotine and muscarine?

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

    Where are varicosities located in the autonomic nervous system?

    <p>Spread through the length of the nerve</p> Signup and view all the answers

    Which receptors are present in ganglionic neurons?

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

    Why are baroreceptors important for autonomic reflexes?

    <p>To regulate blood pressure</p> Signup and view all the answers

    Where do short reflexes in the autonomic nervous system produce the efferent response?

    <p>In the periphery</p> Signup and view all the answers

    What causes orthostatic hypotension?

    <p>Changes in blood pressure and heart rate when standing up</p> Signup and view all the answers

    How do most organs respond to both sympathetic and parasympathetic stimulation?

    <p>They respond to whichever neurotransmitter is being released</p> Signup and view all the answers

    What does it mean for an organ to have autonomic tone?

    <p>It means one system exerts much more control than the other normally does</p> Signup and view all the answers

    What is the function of light entering one pupil making both pupils constrict?

    <p>It is an example of autonomic reflexes.</p> Signup and view all the answers

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