Venous Blood

**Semantic type:** Body Substance

**Definition:** Blood carried in veins, generally deoxygenated blood containing urea and other waste products which is transported through the venous system to the heart and lungs. The exception is blood within the pulmonary vein which is oxygenated and travels from the lungs to the left atrium of the heart.

**Synonyms:** - Blood venous - VENOUS BLOOD