Filtration slits are formed by

Options

A. Endothelial lining of glomerular capillaries
B. Basement membrane
C. Inner epithelium of Bowman's capsule
D. The participation of all of these

Answer

**Step-by-Step Solution:**

1. **Understanding the Structure**: The filtration slits are specialized structures found in the kidneys, specifically in the Bowman's capsule, which is part of the nephron.

2. **Identifying the Cells**: The cells responsible for forming these filtration slits are called podocytes. Podocytes are unique epithelial cells that wrap around the capillaries of the glomerulus.

3. **Location of Podocytes**: Podocytes are located in the inner layer of the Bowman's capsule, which is the epithelial lining that surrounds the glomerulus.

4. **Function of Filtration Slits**: The filtration slits created by podocytes allow for the selective filtration of blood. They enable smaller molecules, such as water, salts, and sugars, to pass through while retaining larger molecules like proteins.

5. **Conclusion**: Therefore, filtration slits are formed by the podocytes, which are part of the inner epithelium of the Bowman's capsule.

**Final Answer**: Filtration slits are formed by podocytes in the inner epithelium of the Bowman's capsule.

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