SMC - Smooth muscle cells
TA - Tunica adventitia
L - Lumen
Total magnification - 100x
Histo-Tips: When trying to differentiate between veins and arteries, look for clearly defined layers (usually arteries) or the size of the lumen (usually collapsed in veins).
Comments
Good - you also could have
Good - you also could have labeled the endothelial layer (simple squamous) and the smooth muscle layers make up the tunica media. But you labels are correct - you don't have to make changes.