Question

which tissue lines the small intestine and the stomach?
○ stratified squamous epithelium
○ pseudostratified ciliated columnar epithelium
○ simple squamous epithelium
○ simple columnar epithelium
○ simple cuboidal epithelium

Explanation:

To determine the tissue lining the small intestine and stomach, we analyze each option:

• Stratified squamous epithelium: Lines areas like skin, mouth, not gut.
• Pseudostratified ciliated columnar: Lines respiratory tract, not gut.
• Simple squamous: Lines blood vessels, alveoli, not gut.
• Simple columnar epithelium: Specialized for absorption/ secretion, lines stomach and small intestine.
• Simple cuboidal: Lines kidney tubules, glands, not gut.

Answer:

D. simple columnar epithelium