How do the circulatory and endocrine systems work together?
a.
Blood circulates hormones around the body
c.
Nerves signal endocrine glands
b.
Hormones keep the heart pumping
d.
The blood brings waste to the kidneys
The respiratory system works directly with the circulatory system to provide oxygen to the body. Oxygen taken in from the respiratory system moves into blood vessels that then circulate oxygen-rich blood to tissues and cells.
