Intrinsic Nervous System: Enteric Nervous System (ENS)
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Questions and Answers

What type of neuron is primarily responsible for controlling gastrointestinal motility, secretion, and absorption?

  • Interneurons
  • Afferent fibers
  • Motor neurons (correct)
  • Sensory neurons
  • Which neural plexus is primarily responsible for controlling local intestinal secretion, absorption, and contraction of the submucosal muscle?

  • Interganglionic strands
  • Interneurons
  • Myenteric plexus
  • Submucosal plexus (correct)
  • Which part of the gastrointestinal tract is not innervated by the vagus nerve?

  • Esophagus
  • Large intestine (cecum) (correct)
  • Stomach
  • Small intestine
  • Which type of nerve fiber receives information from sensory receptors in the mucosa and muscle?

    <p>Intrinsic primary afferent neurons (IPANs)</p> Signup and view all the answers

    Which neural plexus forms a continuous network that extends from the upper esophagus to the internal anal sphincter?

    <p>Myenteric plexus</p> Signup and view all the answers

    Which part of the gastrointestinal tract is not innervated by the pelvic nerves?

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

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