Digestive Mucosa · Histology

The muscularis mucosae typically consists of which type of muscle?

  1. Skeletal muscle
  2. Cardiac muscle
  3. Smooth muscle fibers
  4. Striated involuntary muscle
Show answer and explanation

Correct answer: Smooth muscle fibers

The muscularis mucosae is a thin layer of smooth muscle that separates the mucosa from the submucosa. Its contraction helps change the surface area of the mucosa to facilitate secretion and absorption.

Difficulty: Medium Question 4 of 20

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