The Autonomic Nervous System
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Questions and Answers

Which ganglion is an example of a prevertebral ganglion?

  • Adrenal medulla
  • Sympathetic ganglion
  • Thoracic spinal cord
  • Celiac ganglion (correct)

What is the specialized ganglion located in the adrenal medulla?

  • Celiac ganglion
  • Sympathetic ganglion
  • Adrenal medulla (correct)
  • Thoracic spinal cord

Which neurotransmitter is released by the axons of the adrenal medulla?

  • Dopamine
  • Epinephrine (correct)
  • Norepinephrine
  • Acetylcholine

What enzyme catalyzes the conversion of norepinephrine to epinephrine?

<p>PNMT (C)</p> Signup and view all the answers

Which region of the spinal cord are the cell bodies of the adrenal medulla located in?

<p>Thoracic spinal cord (C)</p> Signup and view all the answers

What neurotransmitters are released by sympathetic postganglionic adrenergic nerves?

<p>Norepinephrine (A)</p> Signup and view all the answers

Which tissue undergoes contraction in response to sympathetic adrenergic varicosities?

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

What is the overall function of the sympathetic nervous system?

<p>To mobilize the body for activity (A)</p> Signup and view all the answers

Which cranial nerves give rise to preganglionic neurons of the parasympathetic division?

<p>III, VII, IX (C)</p> Signup and view all the answers

Which spinal cord segments give rise to preganglionic neurons of the parasympathetic division?

<p>Sacral spinal cord segments (C)</p> Signup and view all the answers

Which type of neuron releases norepinephrine as its neurotransmitter?

<p>Adrenergic neuron (D)</p> Signup and view all the answers

What are the receptors for acetylcholine called?

<p>Muscarinic receptors (C)</p> Signup and view all the answers

Which neurons release acetylcholine as their neurotransmitter?

<p>Cholinergic neurons (B)</p> Signup and view all the answers

What type of neurons release peptides or nitric oxide as their neurotransmitter instead of acetylcholine?

<p>Nonadrenergic, noncholinergic neurons (D)</p> Signup and view all the answers

What is the function of the somatic nervous system?

<p>Controls voluntary movements of skeletal muscles (A)</p> Signup and view all the answers

What is the function of the autonomic nervous system?

<p>Controls and modulates the functions of visceral organs (C)</p> Signup and view all the answers

What are the two neurons that make up each pathway in the autonomic nervous system?

<p>Preganglionic neuron and cholinergic neuron (C)</p> Signup and view all the answers

What is the name given to the junctions between postganglionic autonomic neurons and their effectors?

<p>Varicosities (A)</p> Signup and view all the answers

Which type of neuron synapses on postganglionic neurons in paravertebral ganglia?

<p>Preganglionic neuron (C)</p> Signup and view all the answers

What type of innervation do sweat glands have?

<p>Sympathetic cholinergic innervation (B)</p> Signup and view all the answers

Which neurotransmitter is released by sympathetic postganglionic adrenergic nerves?

<p>Norepinephrine (B)</p> Signup and view all the answers

What is the name given to the junctions between postganglionic autonomic neurons and their effectors?

<p>Neuroeffector junctions (C)</p> Signup and view all the answers

Which type of neuron releases norepinephrine as its neurotransmitter?

<p>Postganglionic sympathetic neuron (B)</p> Signup and view all the answers

What type of innervation do sweat glands have?

<p>Sympathetic cholinergic innervation (A)</p> Signup and view all the answers

What are the receptors for acetylcholine called?

<p>Muscarinic receptors (D)</p> Signup and view all the answers

What are the two neurons that make up each pathway in the autonomic nervous system?

<p>Preganglionic neuron and postganglionic neuron (B)</p> Signup and view all the answers

Which region of the spinal cord are the cell bodies of the adrenal medulla located in?

<p>Thoracic region (D)</p> Signup and view all the answers

What is the function of the somatic nervous system?

<p>Controls voluntary movements of skeletal muscles (A)</p> Signup and view all the answers

Which type of neurons release peptides or nitric oxide as their neurotransmitter instead of acetylcholine?

<p>Postganglionic parasympathetic neurons (A)</p> Signup and view all the answers

Which tissue undergoes contraction in response to sympathetic adrenergic varicosities?

<p>Smooth muscle (A)</p> Signup and view all the answers

Which ganglion is an example of a prevertebral ganglion?

<p>Celiac ganglion (D)</p> Signup and view all the answers

What is the name given to the junctions between postganglionic autonomic neurons and their effectors?

<p>Neuromuscular junctions (A)</p> Signup and view all the answers

What type of innervation do sweat glands have?

<p>Sympathetic innervation (C)</p> Signup and view all the answers

What type of neurons release peptides or nitric oxide as their neurotransmitter instead of acetylcholine?

<p>Parasympathetic cholinergic neurons (B)</p> Signup and view all the answers

What neurotransmitters are released by sympathetic postganglionic adrenergic nerves?

<p>Epinephrine and norepinephrine (B)</p> Signup and view all the answers

What enzyme catalyzes the conversion of norepinephrine to epinephrine?

<p>PNMT (D)</p> Signup and view all the answers

What is the specialized ganglion located in the adrenal medulla?

<p>Adrenal medulla ganglion (A)</p> Signup and view all the answers

What is the overall function of the sympathetic nervous system?

<p>To mobilize the body for activity (A)</p> Signup and view all the answers

What is the function of the autonomic nervous system?

<p>To regulate organ system functions (C)</p> Signup and view all the answers

Which region of the spinal cord are the cell bodies of the adrenal medulla located in?

<p>Thoracic spinal cord (C)</p> Signup and view all the answers

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