Cardiovascular System

Question 3 - Single Best Answer

Identify the structure:

B) bronchiole

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A bronchiole would have a simple columnar or cuboidal epithelium. In addition, there would not normally be any red blood cells in the lumen of the bronchiole. Note that a pulmonary vein typically appears by itself in the lung tissue while a pulmonary artery is usually paired with a bronchiole.