Question

The inner lining of the kidney tubules has

• A. Cuboidal epithelium
• B. Columnar epithelium
• C. Squamous epithelium
• D. None of the above

Answer 1

The correct option is A Cuboidal epithelium

Epithelial tissues are animal tissues. They perform different functions such as absorption of substances, regulation of chemicals between tissues and body cavity, protection of underlying tissues, etc. These tissues can be categorised into the following types:

• Squamous epithelium - Thin, flat and closely packed cells. This tissue is present in cavities of mouth, oesophagus, alveoli and blood vessels.
• Columnar epithelium - Cells of this tissue are pillar and column-like. These are present in the lining of the stomach and intestine.
• Cuboidal epithelium - Cells of this tissue are cuboidal in shape. They are found in kidney tubules, salivary glands, sweat glands, etc.

So, the correct option is 'Cuboidal epithelium'.