Esophagus Function and Peristalsis Quiz
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Questions and Answers

What are the two types of peristaltic movements exhibited by the esophagus?

  • Primary and tertiary peristalsis
  • Primary and quaternary peristalsis
  • Secondary and tertiary peristalsis
  • Primary and secondary peristalsis (correct)

What is the primary function of the esophagus?

  • Digesting food
  • Absorbing nutrients
  • Conducting food from the pharynx to the stomach (correct)
  • Storing food

How long does it typically take for food to pass from the pharynx to the stomach during primary peristalsis?

  • 30-40 seconds
  • 15-20 seconds
  • 8-10 seconds (correct)
  • 2-4 seconds

What effect does gravity have on the movement of food in the esophagus?

<p>Speeds up the movement (D)</p> Signup and view all the answers

What initiates secondary peristaltic waves in the esophagus?

<p>Intrinsic neural circuits in the myenteric nervous system (D)</p> Signup and view all the answers

Which type of muscle is found in the pharyngeal wall and upper third of the esophagus?

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

What happens if the primary peristaltic wave fails to move all the food into the stomach?

<p>Secondary peristaltic waves are initiated (A)</p> Signup and view all the answers

How do secondary peristaltic waves travel in the esophagus?

<p>Through vagal afferent fibers (D)</p> Signup and view all the answers

What is the impact of food retention on secondary peristaltic waves?

<p>It accelerates them. (B)</p> Signup and view all the answers

How are secondary peristaltic waves initiated?

<p>By intrinsic neural circuits. (C)</p> Signup and view all the answers

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