Cells of squamous epithelium are

Assertion: The squamous epithelium is made of a single thin layer of flattened cells with irregular boundaries.
Reason: They are found in walls of blood vessels and air sacs of lungs.

The ciliated columnar epithelial cells in humans are known to occur in

Select the correct match.

Which of the following types of epithelium is present in the bronchioles and Fallopian tubes?

Choose the correct sentences for compound epithelium:
$(I)$ Compound epithelium is made of multi-layered cells.
$(II)$ It has a limited role in secretion and absorption.
$(III)$ It provides protection against chemical and mechanical stresses.
$(IV)$ It is present in $PCT$.