Final answer:
The CF vascul/o refers to a blood vessel, including arteries and veins, commonly associated with conditions like atherosclerosis where plaque buildup occurs.
Step-by-step explanation:
The CF vascul/o refers to a blood vessel, which is a hollow, tube-like structure through which blood flows within the cardiovascular system. This includes veins, arteries, and capillaries. For instance, when discussing conditions like atherosclerosis, the term vascul/o directly relates to the blood vessels affected by the buildup of fatty plaques. These plaques can lead to a narrowing of the arteries, which restricts blood flow and can ultimately result in various cardiovascular diseases.