Answer:
Veins and arteries.
Step-by-step explanation:
The blood vessels are components of the circulatory system, they carry the blood, nutrients, minerals, oxygen, toxins, though the body. These vessels have a pretty important function because all the body depend on them.
In this cases we are talking about veins and arteries which are present in extremities. Arteries have as a function to carry oxygenated blood from the heart to the body, and veins carry deoxygenated blood back to the heart.