MCQ
The ciliated columnar epithelial cells in humans occur in
- AEustachian tube and stomach lining
- ✓bronchioles and fallopian tubes
- Cbile duct and oesophagus
- Dfallopian tubes and urethra
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$R :$ Descending limb is impermeable to $Na^+$, while ascending limb is impermeable to $H_2O.$