What is a blood vessel?
Blood is carried through the body via blood vessels. (1)

What do blood vessels do?
blood vessels can constrict (vasoconstriction) (2)

What are types of blood vessels?
arterioles
arteries (3)
veins (3)
capillaries (3)

Where are blood vessels located?
adipose tissue

What do blood vessels contain? 
andothelial cells

Resources
1. https://med.libretexts.org/Bookshelves/Anatomy_and_Physiology/Human_Anatomy_(OERI)/18%3A_Cardiovascular_System_-_Blood_Vessels_and_Circulation/18.02%3A_Structure_and_Function_of_Blood_Vessels
2. https://www.livestrong.com/article/395736-does-caffeine-constrict-blood-vessels/
3. https://www.medicalnewstoday.com/articles/cardiovascular-system#organs-and-tissues

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