Which of the following statements is false?

Options

A. Renal tubule starts with a double wailed like structure called Bowman's capsule
B. PCT is present in medulla part of kidney
C. In majority of nephrons, the loop of Henle is too short and such nephrons are cortical nephrons
D. Juxta medullary nephron has long loop of Henle

Answer

To determine which of the following statements is false regarding the excretory system, we will analyze each statement one by one.

1. **Statement 1**: "Renal tubules start with a double wall layer like structure called Bowman's capsule."
- **Analysis**: This statement is true. The renal tubules indeed begin with the Bowman's capsule, which is a double-walled structure that encloses the glomerulus (a tuft of capillaries).

2. **Statement 2**: "PCT is present in the medulla part of the kidney."
- **Analysis**: This statement is false. The Proximal Convoluted Tubule (PCT) is located in the cortex of the kidney, not the medulla. The medulla contains the loops of Henle and collecting ducts.

3. **Statement 3**: "In the majority of nephron, the loop of Henle is too short and such nephrons are called cortical nephrons."
- **Analysis**: This statement is true. Cortical nephrons have short loops of Henle that extend only slightly into the medulla.

4. **Statement 4**: "Juxtamedullary nephron has long loop of Henle."
- **Analysis**: This statement is also true. Juxtamedullary nephrons have long loops of Henle that extend deep into the medulla.

**Conclusion**: The false statement among the options is **Statement 2**: "PCT is present in the medulla part of the kidney."