What is the primary function of the cardiovascular system?

The primary function of the cardiovascular system is to circulate oxygen and nutrients throughout the body. This system consists of the heart, blood vessels, and blood, all of which work in concert to maintain homeostasis and support bodily functions. The heart pumps oxygen-rich blood from the lungs to various tissues and organs, delivering essential nutrients and oxygen that cells need for metabolism and energy production.

Furthermore, the cardiovascular system is crucial for distributing hormones, but that is a secondary function compared to the direct role of transporting oxygen and nutrients. While regulating body temperature and removing waste products are important functions associated with the system, they occur as part of the overall process of circulation rather than defining its primary role. Transporting gases (oxygen and carbon dioxide) and nutrients is fundamental to the survival and health of tissues, making it the central function of the cardiovascular system.