The Structural Components of the Circulatory System Include The

Question

The structural components of the circulatory system include the:
A)heart and lungs.
B)heart and lymph nodes.
C)heart and blood vessels.
D)heart, vessels, and lymph nodes.

Accepted Answer

The circulatory system includes the heart and blood vessels, which work together to transport blood throughout the body. The lymphatic system, which includes lymph nodes and vessels, is separate from the circulatory system but can interact with it. The lungs are part of the respiratory system and are involved in the exchange of oxygen and carbon dioxide, but are not directly part of the circulatory system.