heart blood blood bessels
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.
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.
1.arteries 2.vien 3.capillaries
Actually, there are only 3 parts to the circulatory system, and they are the heart, blood vessels, and the blood.
what are the 3 major parts of the digestive system the stomach?
The Heart, The Veins and Arteries and The Lungs
Technically, the three parts are: 1. Your heart 2. Your veins 3. Your arteries The circulatory system carries blood around your body, providing oxygen to you muscles. This is why your heart beats faster when you run.
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heart is the organ , you may not believe but blood is tissue.
In cephalopods like octopuses, the circulatory system is closed, with blood contained in vessels. Bivalves like clams have an open circulatory system where blood is pumped into a hemocoel. Gastropods, such as snails, have a mix of closed and open circulatory systems, with a heart that pumps blood through vessels but also into spaces around organs.
The human body has 3 main parts:The heartThe bloodThe blood vesselsSometimes people count the fluid lymph, and the vessels that carry it in them, parts of the circulatory system.A few of the parts of the heart are ventricles, arteries, valves, the septum, and the atria. The pumping sound of the heart comes from valves opening and closing.
The heart, arteries, and veins are the 3 major organs in the circulatory system. The heart pumps blood through the arteries, and the veins return blood to the heart for circulation throughout the body.