Venous Blood: Understanding the Fluid in Your Veins

The fluid found within veins is called venous blood. Venous blood is deoxygenated blood that is being returned to the heart from the body's tissues. It is typically a dark red color due to the lower oxygen content compared to arterial blood. Venous blood carries waste products such as carbon dioxide and metabolic byproducts, which are transported to the lungs and kidneys for elimination.