[Campbell Biology P.926] Epithelial tissues serve multiple crucial roles in the body. Which ... | Practice Question

Epithelial tissues serve multiple crucial roles in the body. Which of the following statements accurately describes a key characteristic or function of epithelial tissues?

  • A: They are typically loosely packed with extensive extracellular matrix.
  • B: Their primary role is to transmit nerve impulses rapidly.
  • C: They often form barriers against mechanical injury, pathogens, and fluid loss.
  • D: They are characterized by a rich blood supply within the tissue itself.

Explanation

The text states that epithelial tissues 'function as a barrier against mechanical injury, pathogens, and fluid loss' and are 'closely packed'. This aligns with option C. Options A, B, and D describe characteristics of other tissue types or are incorrect for epithelial tissue.