Questions: Use the diagram above to answer the following questions. Identify the letter that is indicating the lumen.

Use the diagram above to answer the following questions. Identify the letter that is indicating the lumen.
Transcript text: Use the diagram above to answer the following questions. Identify the letter that is indicating the lumen.
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Solution

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Solution Steps

Step 1: Analyzing the image and question

The question asks for the letter indicating the lumen. The lumen is the open space within a tubular structure, like a blood vessel, through which blood flows.

Step 2: Locating the lumen

In the provided diagram, the lumen is the central cavity of the blood vessel. Arrows are even pointing to it.

Step 3: Identifying the correct label

The letter "A" is labeling the lumen.

Final Answer: A

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