Epithelial Tissues

Front

What are epithelial tissues?

Back

Epithelial tissues are layers of cells that cover body surfaces, line cavities and organs, and form glands. They serve various functions including protection, absorption, secretion, and sensation.

Front

What is the primary function of simple squamous epithelial tissue?

Back

The primary function of simple squamous epithelial tissue is to facilitate diffusion and filtration due to its thin, flat structure.

Front

Identify a key characteristic of transitional epithelial tissue.

Back

Transitional epithelial tissue can stretch and change shape, allowing it to accommodate fluctuations in the volume of liquid in an organ.

Front

What is the difference between simple and stratified epithelial tissues?

Back

Simple epithelial tissues consist of a single layer of cells, while stratified epithelial tissues have multiple layers, providing more protection.

Front

What type of epithelial tissue is found in the lining of the respiratory tract?

Back

Pseudostratified ciliated columnar epithelial tissue is found in the lining of the respiratory tract.

Front

What is the role of cilia in epithelial tissues?

Back

Cilia are hair-like structures that help move substances across the surface of epithelial tissues, such as mucus in the respiratory tract.

Front

What is the function of glandular epithelial tissue?

Back

Glandular epithelial tissue is specialized for secretion, producing substances such as hormones, enzymes, and sweat.

Front

What is the significance of the basement membrane in epithelial tissues?

Back

The basement membrane provides structural support and anchors epithelial tissues to underlying connective tissues.

Front

How do epithelial tissues receive nutrients?

Back

Epithelial tissues are avascular (lack blood vessels) and receive nutrients through diffusion from underlying connective tissues.

Front

What is the difference between endocrine and exocrine glands?

Back

Endocrine glands secrete hormones directly into the bloodstream, while exocrine glands secrete substances through ducts to the surface of an organ.