The three major organs of the circulatory system are:
1) The Heart: it pumps blood throughout the body.
2) The Brain: It tells the heart when to pump and how fast to pump. The Brain is what tells the heart to speed up during exercise, and to slow down during rest.
3) The Lungs: The lungs bring in air, and the blood goes through the lungs to pick up the oxygen and bring it throughout the rest of the body as the heart pumps.
... The major organs of the circulatory system are the heart, blood, and blood vessels.
The major organs of the circulatory system are the heart, arteries, veins, and capillaries. The major organs of the respiratory system are the lungs, trachea, bronchi, and diaphragm.
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veins..
The main organs of the respiratory system are the nose, pharynx, trachea, bronchi, and lungs.
The major organ of the urinary system is two bean shaped kidneys.
The three major organs of the circulatory system are: The Heart, The Brain and The Lungs:
Skeletal System - Skeleton and nerves
The five major organs of the respiratory system are the lungs, trachea, bronchi, diaphragm, and alveoli. These organs work together to help you breathe by intaking oxygen and releasing carbon dioxide.
The heart and the blood vessels.
bones, cartilage, tendons, and ligaments
The major organs that make up the reproductive system is the penis in males and the vagina in females. The other organs are the gonads, more specifically the testicles and ovaries.