Bowman's capsule is lined by which epithelium?

Bowman's capsule is lined by which epithelium?

• A. Transitional epithelium
• B. Simple columnar epithelium
• C. Simple cuboidal epithelium
• D. Simple squamous epithelium

Answer: (D)

Bowman's capsule has an outer wall (parietal layer) lined by simple squamous epithelium. This thin, flat cell type provides a smooth, minimal-resistance surface that helps filtrate move into the capsular space efficiently. The visceral layer, which covers the glomerulus itself, is made of specialized podocytes with foot processes that create filtration slits, a different arrangement from the simple squamous lining of the parietal layer. Alternatives like transitional epithelium are found in stretched, low-resistance areas of the urinary tract, simple columnar epithelium lines some ducts, and simple cuboidal epithelium lines most renal tubules, not the capsule’s outer lining.

Bowman's capsule has an outer wall (parietal layer) lined by simple squamous epithelium. This thin, flat cell type provides a smooth, minimal-resistance surface that helps filtrate move into the capsular space efficiently. The visceral layer, which covers the glomerulus itself, is made of specialized podocytes with foot processes that create filtration slits, a different arrangement from the simple squamous lining of the parietal layer. Alternatives like transitional epithelium are found in stretched, low-resistance areas of the urinary tract, simple columnar epithelium lines some ducts, and simple cuboidal epithelium lines most renal tubules, not the capsule’s outer lining.