Dense Irregular Connective Tissue · Histology

Which of the following is the defining histological characteristic of dense irregular connective tissue?

  1. Thin reticular fibers forming a delicate meshwork
  2. Thick collagen bundles arranged in a highly parallel, orderly fashion
  3. Thick collagen bundles arranged randomly in multiple orientations
  4. A high abundance of ground substance with very few fibers
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Correct answer: Thick collagen bundles arranged randomly in multiple orientations

Dense irregular connective tissue is characterized by a high density of Type I collagen fibers. These bundles are woven in a non-parallel, three-dimensional pattern, which allows the tissue to resist mechanical stress from many different directions.

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