What does the circulatory system consist of?

The circulatory system primarily consists of the heart and blood vessels. The heart is the central organ that pumps blood throughout the body, while the blood vessels, which include arteries, veins, and capillaries, transport blood to and from various tissues and organs. This system is crucial for delivering oxygen and nutrients to cells and removing waste products, thereby supporting overall body function.

Understanding the components of the circulatory system is vital for recognizing how it interacts with other systems in the body, such as the respiratory system. While ligaments, muscles, tendons, bone, and cartilage have important roles in the body's structure and movement, they are not parts of the circulatory system. Instead, they are associated with the musculoskeletal system, which facilitates body movement and provides support.