Transitional Epithelium: Lining the Urinary Tract - Definition & Function

The urinary tract is lined with transitional epithelium, also known as urothelium. Transitional epithelium is a specialized type of stratified squamous epithelium. It is highly flexible and can stretch to accommodate fluctuations in the volume of urine in the urinary tract. It also acts as a barrier to protect the underlying tissues from the acidic urine