Circulatory system
- Pronunciation
- /SIR-kul-uh-tor-ee SIS-tem/
- Category
- Physiology
- Plural
- Circulatory systems
Definition
The system responsible for transporting nutrients, oxygen, and waste products throughout an organism's body.
Etymology
From Latin 'circulatus', meaning 'circular', and 'systema', referring to a network.
Example
The circulatory system of insects is open, with hemolymph flowing freely through the body cavity.