Identify the structure at the tip of the arrow:
Question 1 - Single Best Answer
Identify the structure at the tip of the arrow:
B) proximal straight tubule
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Since proximal straight tubules are located in the medullary rays, most of the tubules present should be oriented parallel to each other without turns or bends evident in the section. Proximal tubules (in general) typically have a brush border, large outside diameter, and star-shaped lumen.
