Which of the following parts of the kidney has a striped appearance

Question

BlackTom AI · Accepted Answer

The question asks which part of the kidney shows a striped appearance. 
Option 1: major calyx — This is a larger urine-collecting chamber at the renal pelvis level, not characterized by stripes; its appearance is more of a spacious cavity rather than patterned striations. 
Option 2: renal columns — These are vertical extensions of cortical tissue that separate renal pyramids; they are relatively uniform areas of cortex and are not the source of the striped medullary pattern typically described in histology. 
Option 3: minor calyx — A small calyx that collects urine from a single papilla; it is a chamberal space, not a striped structure, so the striped appearance does not apply here. 
Option 4: renal pyramids — The medullary pyramids display distinct striations due to the parallel bundles of microscopic tubules and collecting ducts running from the cortex toward the papilla, creating the characteristic striped (striated) look. 
Therefore, the correct choice is the renal pyramids, which are known for their striped appearance, whereas the other options refer to structures that lack that alternating pattern.

Which of the following parts of the kidney has a striped appearance单项选择题

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