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MBBS QUESTION #10153
Question 1
A skin biopsy shows stratified squamous keratinized epithelium with a granular layer and surface keratin. This tissue was most likely obtained from:
  • Esophageal mucosa
  • Epidermis of the skin✔️
  • Tracheal mucosa
  • Urinary bladder mucosa
Correct Answer Explanation
The epidermis is stratified squamous keratinized epithelium, adapted to withstand mechanical stress and desiccation. The esophagus is also stratified squamous but non-keratinized; trachea is pseudostratified ciliated columnar; bladder is transitional (urothelium).