In Toyota's VVT-i, the engine control unit (ECU), the head and most powerful computer on cars, receives signals from various sensors and uses those signals to adjust an output to an oil control... In Toyota's VVT-i, the engine control unit (ECU), the head and most powerful computer on cars, receives signals from various sensors and uses those signals to adjust an output to an oil control... Star Gazing
Arteries. The arteries are major blood vessels connected to your heart. 1  The pulmonary artery carries blood from the right side of the heart to the lungs to pick up a fresh supply of oxygen. 2  The aorta is the main artery that carries oxygen-rich blood from the left side of the heart to the body.eins. The veins also are major blood vessels connected to your heart. 1  The pulmonary veins carry oxygen-rich blood from the lungs to the left side of the heart so it can be pumped to the body. 2  The superior and inferior vena cavae are large veins that carry oxygen-poor blood from the body back to the heart.
Arteries carry blood to the tissues, and veins carry blood back to the heart. In betweenare tiny blood vessels so small that red blood cells can pass through single file, allo â¦ wingthe oxygen to diffuse into the surrounding tissue.These are called capillaries.rteries carry blood to the tissues, and veins carry blood back to the heart. In betweenare tiny blood vessels so small that red blood cells can pass through single file, allo â¦ wingthe oxygen to diffuse into the surrounding tissue.