What is a organ sytem found in the circulatory system?
Veins: Veins are blood vessels that carry deoxygenated blood back to the heart from the rest of the body.
Capillaries: Capillaries are tiny blood vessels that connect arteries and veins. They allow oxygen and nutrients to be exchanged between the blood and the body's tissues.
The heart: The heart is a muscular organ that pumps blood throughout the body.