Histology USMLE Step 1 Practice Question
A 23-year-old man sustains a deep laceration across the palm while cooking. Vital signs are stable: BP 118/76 mmHg, HR 88/min, RR 16/min. During surgical repair, the surgeon observes that the injured skin lacks hair follicles and contains a distinct, glossy stratum lucidum layer. Histologic examination confirms increased keratin density. The wound does not involve subcutaneous fat. Which of the following best describes this tissue type?
Answer choices
- ATransitional epithelium with umbrella cells
- BThin skin with sebaceous glands and arrector pili muscles
- CThin skin lined by nonkeratinized stratified squamous epithelium
- DThick skin with keratinized stratified squamous epitheliumCorrect answer
- ESimple cuboidal epithelium with sweat ducts only
- FKeratinized stratified squamous epithelium with hair follicles and sebaceous glands
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