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The primary function of the circulatory system is transportation. The need for an efficient transportation system in the body is critical. Transportation needs include continuous movement of oxygen and carbon dioxide, nutrients, hormones and other important substances. Wastes produced by the cells are released into the bloodstream on an ongoing basis and are transported by the blood to the excretory organs. The circulatory system also helps regulate body temperature by distributing heat throughout the body and by assisting in retaining or releasing heat from the body by regulating blood flow near the body surface. Certain cells of the circulatory system can also become involved in the defense of the body or immunity.

The Lymphatic systems function includes the movement of fluids and certain large molecules from the tissue spaces around the cells and movement of fat-related nutrients from the digestive tract back to the blood. The lymphatic system is also involved in the functioning of the immune system, which plays a critical role in the defense mechanism of the body against disease.

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What organ systems are found in both subdivisions of the ventral body cavity?

cardiovascular, lymphatic, and nervous systems.


Which systems transport fluids in the body?

No, they are not the same. The lymphatic system is related to your immune system; it acts as a cleaning agent for the blood (removes debris, etc.), whereas the cardiovascular system concerns the circulation of blood, the oxygen and nutrients it carries, and the relationship between the heart and the lungs.


Does the lymphatic system produce hormones and enzymes?

No, the lymphatic system is (to the best of current knowledge) strictly a transportation system for lymph that runs parallel to the cardiovascular system.


What is the difference between the hematologic system and the lymphatic system?

The hematologic system includes blood, blood vessels, and the organs that produce blood cells (like the bone marrow), whereas the lymphatic system is a network of vessels and organs that help rid the body of toxins, waste, and other unwanted materials. One key difference is that the hematologic system primarily deals with transporting oxygen and nutrients, while the lymphatic system focuses on immune responses and fluid balance in the body.


Is there a spleen in the circulatory system?

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.

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