In circulatory is the u a e i o
In the nervous is the brain for magimbu
drow the three major parst of circulatory system
... The major organs of the circulatory system are the heart, blood, and blood vessels.
THE ANSWER IS THE HEARTand the veins and the googleGeeves would like to suggest that there are three essential aspects to the circulatory system: Heart, lungs, and brain. Without any one of these organs the circulatory system would cease to function.
well i know the function of it but not what you want i will still give you the function: Circulatory System transports oxygen, carbon dioxide, nutrients, waste products, immune components, and hormones. Major organs include the heart, capillaries, arteries, and veins. The lymphatic system also transports excess fluids to and from circulatory system and transports fat to the heart.
There is only one major organ in circulatory system that is heart. Brain and lungs are not its parts they are parts of nervous and resperatory system. you may also see blood vessels as a part of circulatory system but its not an organ.
Grasshoppers have an open circulatory system, and worms have a closed circulatory system. There you go. :)
Not clear on which 3 classes are the "major ones", but Polyplacophorans, Gastropods, and Bivalves have an open circulatory system while Cephalopods have a closed circulatory system.
The brain is a major organ of the nervous system
The heart and circulatory system.
Heart
veins..
Artery.