Final answer:
Hormones are not part of the cardiovascular system.
Step-by-step explanation:
The cardiovascular system, also known as the circulatory system, consists of the heart, blood vessels, and blood. Its main function is to transport materials such as oxygen, nutrients, hormones, and waste products to and from all cells of the body. The components of the cardiovascular system include arteries, veins, and capillaries.
Based on the information provided, the answer to your question is B. Hormones are not part of the cardiovascular system. While hormones can travel in the blood, they are produced by glands of the endocrine system and are not considered a structural component of the cardiovascular system.