Anatomy of the Large Intestine
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Questions and Answers

What is the length of the small intestine?

  • 6 meters (correct)
  • 5 meters
  • 7 meters
  • 8 meters

    • What is the process of moving gastric contents to the small intestine?

  • Absorption
  • Digestion
  • Not mentioned
  • Peristalsis (correct)

    • What is the approximate length of the small intestine in inches?

  • 22 inches
  • 15 inches
  • 20 inches (correct)
  • 18 inches

    • What is the shape of the small intestine?

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

    What is the function of the small intestine?

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

    What is the starting point of the large intestine?

    <p>The cecum</p> Signup and view all the answers

    What is the structure of the cecum?

    <p>A saclike structure</p> Signup and view all the answers

    What is the function of the cecum?

    <p>To store food</p> Signup and view all the answers

    What is the purpose of the factors in the intestinal walls?

    <p>To increase the absorptive surface area</p> Signup and view all the answers

    What are Plicae Circulares?

    <p>Circular folds of the intestinal mucosa</p> Signup and view all the answers

    Where does the large intestine extend to?

    <p>The anus</p> Signup and view all the answers

    What is the function of Plicae Circulares?

    <p>To increase the surface area for absorption</p> Signup and view all the answers

    What is the name of the valve near the ileum in the small intestine?

    <p>The ileocecal valve</p> Signup and view all the answers

    What is the layer of the intestine where Plicae Circulares are found?

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

    What is the shape of Plicae Circulares?

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

    What is the function of the tunica muscularis?

    <p>To surround the submucosa</p> Signup and view all the answers

    What type of muscle is found in the tunica muscularis in the pharynx, mouth and upper esophagus?

    <p>Skeletal muscle</p> Signup and view all the answers

    What is the relationship between the tunica muscularis and the submucosa?

    <p>The submucosa is surrounded by the tunica muscularis</p> Signup and view all the answers

    In which part of the digestive system is the tunica muscularis found?

    <p>Pharynx, mouth and upper esophagus</p> Signup and view all the answers

    What is the main component of the tunica muscularis?

    <p>Muscle tissue</p> Signup and view all the answers

    What does parasympathetic stimulation lead to?

    <p>A decrease in the activity of the digestive system</p> Signup and view all the answers

    What is the effect of parasympathetic stimulation on the digestive system?

    <p>It slows down the digestion process</p> Signup and view all the answers

    What is the result of parasympathetic stimulation on the digestive system's activity?

    <p>Decreased movement of food through the digestive system</p> Signup and view all the answers

    What is the effect of parasympathetic stimulation on the gut?

    <p>It decreases the gut's motility</p> Signup and view all the answers

    What is the outcome of parasympathetic stimulation on the digestive system?

    <p>Decreased peristalsis</p> Signup and view all the answers

    Study Notes

    Large Intestine

    • The large intestine extends from the ileocecal valve to the anus.
    • Also known as the colon, it is made up of distinct segments.

    Cecum

    • The cecum is a saclike structure that makes up the first few inches of the intestine.
    • It is the first part of the large intestine.

    Small Intestine

    • The small intestine is a tube that is approximately 6 meters (20 inches) long.
    • It is the longest part of the intestine.

    Intestinal Wall

    • The intestinal wall is equipped with factors that increase the absorptive surface area.
    • These factors include: • Plicae Circulares: circular folds of the intestinal mucosa/mucous membrane lining. • Submucosa: a layer of loose connective tissue that surrounds the mucous membrane. • Tunica muscularis: a layer of muscle that surrounds the submucosa.

    Tunica Muscularis

    • The tunica muscularis is made up of skeletal muscle in the pharynx, mouth, and upper esophagus.
    • It plays a role in the inhibition of the digestive system.

    Other Facts

    • The enteric nervous system (ENS) is a network of nerve fibers that innervates the digestive system.
    • The ENS can function independently of the central nervous system (CNS).

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    Description

    Quiz about the structure and parts of the large intestine, including the cecum and anal opening.

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