Sympathetic Nervous System Pathways and Effects Quiz

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Questions and Answers

Which nervous system division is often referred to as the 'peace maker'?

  • Sympathetic nervous system
  • Enteric nervous system
  • Central nervous system
  • Parasympathetic nervous system (correct)

Which effect is NOT associated with sympathetic nervous system stimulation?

  • Dilated pupil in the iris muscle
  • Vasoconstriction in blood vessels
  • Increased peristalsis in the stomach (correct)
  • Bronchodilation in trachea and bronchi

Where are the cell bodies of parasympathetic preganglionic neurons typically found?

  • Spinal cord
  • Sympathetic trunk ganglia
  • Visceral effectors
  • Brain stem (correct)

Which type of receptors are present in the parasympathetic nervous system?

<p>Nicotinic cholinergic receptors (A)</p> Signup and view all the answers

How does the parasympathetic nervous system affect the secretion of saliva?

<p>Salivary gland secretion increased (B)</p> Signup and view all the answers

What effect does the parasympathetic nervous system have on the heart?

<p>Rate and force of contraction decreased (B)</p> Signup and view all the answers

Which branch of the autonomic nervous system prepares the body for 'fight or flight' situations?

<p>Sympathetic nervous system (B)</p> Signup and view all the answers

Where do the neurons conveying impulses for the sympathetic nervous system originate from?

<p>Hypothalamus and Medulla oblongata (C)</p> Signup and view all the answers

What is the main role of the parasympathetic nervous system in internal homeostasis?

<p>Promotes rest and digest functions (B)</p> Signup and view all the answers

Which term is used to describe the autonomic nervous system without conscious intervention or voluntary control?

<p>Parasympathetic nervous system (C)</p> Signup and view all the answers

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