The appearance of ________ epithelium varies as the tissue is either stretched or relaxed.This type of tissue is unique to the urinary bladder.

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Transitional epithelium is a specialized type of tissue that can change its shape as the organ it lines changes volume. The urinary bladder is especially stretchy, so its transitional epithelium can appear quite flattened (like simple squamous epithelium) when the bladder is empty or more dome-shaped when it's full. Simple cuboidal epithelium is a common tissue found in glandular organs, and pseudostratified columnar epithelium lines the respiratory system.

The Appearance of ________ Epithelium Varies as the Tissue Is