What is the correct answer?


Read the following statements and answer the question.
  1. It is made of a single thin layer of flattened cells with irregular boundaries.
  2. They are found in the walls of blood vessels and air sacs of lungs.
  3. They are involved in functions like forming a diffusion boundary.

Which of the following characteristics of tissue is being described by the above statements ?

A. Squamous epithelium

B. Columnar epithelium

C. Ciliated epithelium

D. Compound epithelium

Correct Answer :

A. Squamous epithelium

Squamous epithelium is an epithelium whose most superficial layer consists of flat, scale-like cells called squamous epithelial cells. The epithelium may be composed of one layer of these cells, in which case it is referred to as simple squamous epithelium or it may possess multiple layers, referred to then as stratified squamous epithelium.

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