Autonomic Nervous System Quiz
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Questions and Answers

Which part of the nervous system is responsible for the 'fight or flight' response?

  • Somatic
  • Autonomic
  • Sympathetic (correct)
  • Parasympathetic
  • Where does the sympathetic division of the autonomic nervous system originate from?

  • Cerebellum
  • Thoracolumbar region of the spinal cord (correct)
  • Hypothalamus
  • Lumbar spine
  • Which ganglia are associated with the enteric nervous system and deal with digestion and absorption?

  • Cervical ganglia
  • Thoracic ganglia
  • Collateral ganglia
  • Superior mesenteric and inferior mesenteric ganglia (correct)
  • What is the myelination status of sympathetic axons before and after the ganglia, respectively?

    <p>Myelinated and short, unmyelinated and long</p> Signup and view all the answers

    What is the primary function of the hypothalamus?

    <p>Controlling autonomic and endocrine function</p> Signup and view all the answers

    Which part of the brain is involved in memory and emotional responses?

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

    What is the effect of sympathomimetic drugs on the sympathetic response?

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

    How do exogenous chemicals affect the autonomic nervous system?

    <p>They come from outside the body</p> Signup and view all the answers

    What type of synapse do the sympathetic fibers running to the adrenal medulla have?

    <p>Myelinated</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 receptors are present at the synapses of target effectors in the autonomic nervous system?

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

    What is the term used for an area of a nerve that houses neurotransmitters but is not at the end like in the somatic nervous system?

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

    Which system can't have a short reflex as it must always run into the CNS?

    <p>Somatic system</p> Signup and view all the answers

    What is responsible for autonomic reflexes such as changes in blood pressure, especially in the aorta and carotid arteries?

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

    In which organs does the sympathetic system exert much more control than the parasympathetic system normally does?

    <p>Heart and blood vessels</p> Signup and view all the answers

    What is responsible for BP and HR increasing if a person stands up and changes the altitude of the head?

    <p>Orthostatic hypotension</p> Signup and view all the answers

    What reflex must synapse in the CNS?

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

    What is an example of autonomic pain that may be felt in an unexpected area?

    <p>Light entering 1 pupil</p> Signup and view all the answers

    What controls many homeostatic mechanisms in the body?

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

    Which system is referred to as the cranial sacral system?

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

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