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).
Everything is labeled correctly, but your title is confusing. You said "smooth cardiac muscle" - there's smooth muscle and there's cardiac muscle, and you are clearly labeling cardiac muscle. Please remove the word smooth-it might confuse people.
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Everything is labeled
Everything is labeled correctly, but your title is confusing. You said "smooth cardiac muscle" - there's smooth muscle and there's cardiac muscle, and you are clearly labeling cardiac muscle. Please remove the word smooth-it might confuse people.