Histo-Tips: For learning mechanisms and processes, it is helpful to identify the list “characters” and write a “story” to make sure your understand how everything plays out and is related.
The section you have labeled as TI is the TM. Then the TM/TA area is just TA. In veins, you see none or just a few layers of smooth muscle, and then a larger amount of tunica adventitia. You often can't see the tunica intima - that's ok if it's not visible in your image.
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The section you have labeled
The section you have labeled as TI is the TM. Then the TM/TA area is just TA. In veins, you see none or just a few layers of smooth muscle, and then a larger amount of tunica adventitia. You often can't see the tunica intima - that's ok if it's not visible in your image.