i believe it is the circulatory and the cardio-vascular systems cardiovascular or circulatory
circulatory
it is in the cardiovascular system, but it is not the respiratory system.
circulatory
The system that pumps blood and includes the heart is called the cardiovascular system.
circulatory
The heart is an organ in and of itself. It is the mainstay of the circulatory system. (just to clarify that no other organ includes the heart)
The heart is part of the circulatory system which also includes the arteries, veins, and capillaries.
The heart and blood vessels are part of the cardiovascular system.
Circulatory System
The cardiovascular system, which consists of the heart and lungs (cardiovascular system also includes veins and arteries).
cardiovascular system
The circulatory system and the cardiovascular system. :D NOT jk
"pulmonary vasculature" not a real "system".
The cadiovascular system, sometimes called the circulatory system when it includes the lymphatic system.
The system that the cardiovascular system depends on includes the respiratory system as well as the central nervous system. The central nervous system includes the brain and spine.