Understanding the Autonomic Nervous System
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Questions and Answers

What is the primary function of the amygdala?

  • Controlling autonomic and endocrine function
  • Influencing the hypothalamus based on emotional states (correct)
  • Regulating respiratory rate
  • Communicating with the spinal cord through the dorsal longitudinal fasciculus
  • Which chemicals are considered exogenous?

  • Anticholinergic drugs
  • Parasympathomimetic drugs
  • Endogenous chemicals
  • Exogenous chemicals (correct)
  • How do sympathomimetic drugs affect the sympathetic response?

  • Reduce the sympathetic response
  • Enhance the parasympathetic response
  • Enhance the sympathetic response (correct)
  • Have no effect on the autonomic nervous system
  • What is the function of the medulla in the autonomic nervous system?

    <p>Connecting to cardiac accelerator nerves to increase heart output</p> Signup and view all the answers

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

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

    Where does the sympathetic division of the nervous system originate from?

    <p>Thoracolumbar system of the spinal cord</p> Signup and view all the answers

    Which type of axons are myelinated and short in the sympathetic division of the nervous system?

    <p>Axons before the ganglia</p> Signup and view all the answers

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

    <p>Celiac, superior mesenteric, and inferior mesenteric ganglia</p> Signup and view all the answers

    What type of fibers run to the adrenal medulla with no synapse in a ganglia?

    <p>Long and myelinated fibers</p> Signup and view all the answers

    Which system is referred to as the cranial sacral system due to lacking thoracic or lumbar projections?

    <p>Parasympathetic nervous system</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

    Which type of synapses are activated by acetylcholine (Ach) or norepinephrine and epinephrine?

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

    What does the term 'nor' refer to in the adrenergic system?

    <p>Removal of a methyl group (CH3)</p> Signup and view all the answers

    What do all ganglionic neurons have at the synapse?

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

    What is an area of a nerve that houses neurotransmitters, spread through the length of the nerve in the autonomic nervous system?

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

    What type of reflex must synapse in the CNS?

    <p>Autonomic reflexes</p> Signup and view all the answers

    What is designed to keep a steady flow of oxygen to the brain if a person stands up and changes the altitude of the head?

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

    Where is autonomic control bilaterally, but somatic reflexes unilaterally?

    <p>Blood vessels</p> Signup and view all the answers

    Which organ is under a parasympathetic tone with minimal sympathetic involvement?

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

    What condition involves BP and HR increasing when a person stands up and changes the altitude of their head?

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

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