What term describes blood contained in veins, located outside of the heart and aorta?

The term that describes blood contained in veins, located outside of the heart and aorta, is venous blood. This blood is primarily found within the venous system and is responsible for returning deoxygenated blood from the body's tissues back to the heart.

Understanding the specific components of blood circulation is key in fields such as medicolegal death investigation, as analyzing venous blood can provide vital information about a person's health, state prior to death, and possible causes of death.

Peripheral blood typically refers to the blood circulating in the arms, legs, and other distant parts of the body, but it is not exclusive to venous blood and doesn’t specifically denote the location of the blood in relation to the heart and aorta. Central blood generally pertains to blood within the heart and major vessels, while arterial blood refers to blood contained in the arteries, which is typically oxygenated and moves away from the heart. Thus, venous blood is the most accurate term for blood found in veins outside the heart and aorta.