GIT Motility & Secretion - Semester 4 Control Module
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Questions and Answers

What is the main function of the digestive system?

  • Breakdown of proteins, fats, and carbohydrates into simple particles (correct)
  • Production of hormones for metabolism
  • Generation of energy through photosynthesis
  • Transporting nutrients to various body parts
  • Which system controls the motility and secretion in the gastrointestinal tract?

  • Nervous system (correct)
  • Muscular system
  • Skeletal system
  • Endocrine system
  • Which nerve supplies the distal half of the colon, rectum, and anus?

  • Vagus nerve
  • Phrenic nerve
  • Pelvic nerve (correct)
  • Spinal nerve
  • What is the role of parasympathetic fibers in the gastrointestinal tract?

    <p>Increase motor activities and secretory functions</p> Signup and view all the answers

    Which part of the gastrointestinal tract does the vagus nerve supply?

    <p>Esophagus, stomach, pancreas</p> Signup and view all the answers

    What is the significance of motility in the gastrointestinal tract?

    <p>Aiding in digestion and content propulsion</p> Signup and view all the answers

    What is the function of Auerbach's plexus in the enteric nervous system?

    <p>Controls GIT motility</p> Signup and view all the answers

    Where do most postganglionic sympathetic fibers terminate?

    <p>Neurons of enteric nervous system</p> Signup and view all the answers

    How does sympathetic stimulation affect the GIT sphincters?

    <p>Induces contraction</p> Signup and view all the answers

    Which hormones are considered local hormones in the context of GIT motility and secretion?

    <p>Gastrin and cholecystokinin</p> Signup and view all the answers

    Where is Meissner's plexus located within the gut wall?

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

    Which cells secrete polypeptide hormones acting on the GIT and considered local hormones?

    <p>Entero-endocrine cells</p> Signup and view all the answers

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