Histology · NEET PG Preparation Anatomy
A 45-year-old man undergoes a diagnostic kidney biopsy. Light microscopy of the renal cortex reveals simple cuboidal epithelium lining the tubules wi…
Practice question from Histology (NEET PG Preparation Anatomy), with the correct answer and a step-by-step solution.
medium · MCQ · Q-A7E264
A 45-year-old man undergoes a diagnostic kidney biopsy. Light microscopy of the renal cortex reveals simple cuboidal epithelium lining the tubules with prominent apical brush borders and basal striations corresponding to numerous mitochondria. Which segment of the renal tubule is primarily being described?
- A.Proximal convoluted tubuleCorrect answer
- B.Thin limb of loop of Henle
- C.Distal convoluted tubule
- D.Collecting duct
Solution
The proximal convoluted tubule is lined by simple cuboidal epithelium characterized by a prominent brush border (microvilli) for absorption and basal striations (infolded basolateral membranes packed with elongated mitochondria) to provide energy for active transport.
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