Questions: Which structure in the image is designated by the letter C? Capillary Bed Arteriovenous anastomosis Precapillary sphincter Thoroughfare channel

Which structure in the image is designated by the letter C? Capillary Bed Arteriovenous anastomosis Precapillary sphincter Thoroughfare channel
Transcript text: Which structure in the image is designated by the letter C? Capillary Bed Arteriovenous anastomosis Precapillary sphincter Thoroughfare channel
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Solution

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Solution Steps

Step 1: Locate the structure labeled "C"

The structure labeled "C" is the main vessel running horizontally through the center of the image. It appears to directly connect an arteriole (red vessel) to a venule (blue vessel).

Step 2: Analyze the possible answers

A capillary bed is a network of capillaries, not a single vessel. Arteriovenous anastomosis is a direct connection between an arteriole and a venule, bypassing capillaries. A precapillary sphincter is a band of smooth muscle at the entrance to a capillary bed. A thoroughfare channel is a larger channel through a capillary bed, directly connecting an arteriole and a venule.

Step 3: Determine the correct answer

"C" shows a direct connection between arteriole and venule, and given the available options, the best fit is the thoroughfare channel.

Final Answer: The correct answer is Thoroughfare channel.

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