Assertion: circulatory system's part | /r/HasProperty | vein
Facets:
Source sentences:
text: The main parts of the system are the heart, arteries, capillaries and veins.
text: The main parts of the system are the heart, arteries, capillaries and veins.
text: The three main parts are: arteries, which consist of vessels taking blood away from the heart; veins, which are vessels that take blood to the heart; and capillaries, which are the vessels that connect the arteries and veins together to form the complete circuit.