Autonomic Ganglia in A.N.S. Concise Medical Physiology
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Questions and Answers

What is the function of the autonomic ganglia?

  • Distribute the autonomic output across multiple postganglionic neurons (correct)
  • Act as a relay for both sympathetic and parasympathetic nervous systems
  • Serve as a storage center for hormones
  • Facilitate direct secretion of catecholamines into the blood stream

    • Where are the ciliary, sphenopalatine, submaxillary, and otic ganglia located?

  • Next to the spinal cord
  • At the origin of big vessels from the abdominal aorta
  • Considered collateral parasympathetic ganglia (correct)
  • Inside the adrenal medulla

    • What is the significance of the adrenal medulla in the autonomic nervous system?

  • Mainly secretes noradrenaline into the blood stream
  • Considered a modified sympathetic ganglion (correct)
  • Contains only cholinergic fibers
  • Has no connection to the spinal cord

    • How many cervical ganglia are present in the cervical region?

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

    Which region of the spinal cord has a pair of ganglia for each segment?

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

    What type of fibers supply the adrenal medulla?

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

    Where can you find sympathetic relay of lower thoracic and lumbar ganglia?

    <p>At the origin of big vessels from the abdominal aorta</p> Signup and view all the answers

    How are postganglionic fibers different between the sympathetic and parasympathetic systems?

    <p>Sympathetic postganglionic fibers are longer than parasympathetic fibers</p> Signup and view all the answers

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