Oh honey, the spleen and kidney are like the unsung heroes of the circulatory system. The spleen helps filter out old and damaged red blood cells, while the kidneys work their magic by filtering waste and excess fluid from the blood to make urine. Without these bad boys, your body would be a hot mess of toxins and dehydration. So show some love to your spleen and kidneys, they're doing the dirty work to keep you alive and kicking.
Neither. The spleen is part of the immune system
Heart,spleen
The kidney is a part of the Urinary System. It is not part of the Circulatory System
Muscle and the spleen and the heart and the lungs and the mouth
The lymphatic system complements the circulatory system and involves the spleen by helping to maintain fluid balance in the body, absorbing fats from the digestive system, and producing white blood cells that help fight infection. The spleen filters blood, removing old or damaged red blood cells and storing platelets.
All organs are fed by the circulatory system. Examples include the skin, stomach, uterus, brain, kidneys, and spleen.
The circulatory system brings nutrients to the kidney. It also removes metabolic wastes from the tissues of the kidney.
The spleen belongs to the lymphatic system, which plays a key role in the body's immune response by filtering and processing blood to help fight infections and diseases.
Ok, I have no idea what you mean by that question. Technically, since blood flows to the spleen to keep it alive...then yes. But blood flows to every living cell in your body to keep it alive so...yeah. But is the spleen a part of the circulatory system? That is also a yes. It is part of the lymphatic system, not the cardiovascular system. The lymphatic system is a sub-system of the circulatory system that basically helps fight infection, recycle blood plasma, etc. Most people do not think of the lymphatic system as part of the circulatory system though (even though it is) and most use the words "circulatory" and "cardiovascular" interchangeably (even though they're not interchangeable). Seeing as the cardiovascular organs are the heart and blood vessels, if that is what you meant...then no it's not. Please be more specific with your questions.
Nutrient
The blood is part of the Circulatory System, which includes the heart, lungs, arteries, veins, kidneys, liver and spleen. Here is a good photo, (but leaves out the spleen): http://www.daviddarling.info/images/circulatory_system.jpg
adding oxygen