What is the primary function of the cardiovascular system?

What is the primary function of the cardiovascular system?

• A. Transportation of gases, nutrients, hormones, and wastes throughout the body
• B. Regulation of digestion and nutrient absorption
• C. Protection against infection and disease
• D. Storage of minerals and vitamins

Answer: (A)

The main function of the cardiovascular system is to move substances through the body by circulating blood. The heart pumps blood via vessels to deliver oxygen and nutrients to all tissues, remove carbon dioxide and other wastes, and carry hormones to their target organs. Blood also transports immune cells and helps regulate body temperature and pH, supporting overall homeostasis. Digestion is handled by the digestive system, protection against infection is primarily the immune system, and storage of minerals and vitamins occurs in bones, liver, and other tissues, not in the cardiovascular system.

The main function of the cardiovascular system is to move substances through the body by circulating blood. The heart pumps blood via vessels to deliver oxygen and nutrients to all tissues, remove carbon dioxide and other wastes, and carry hormones to their target organs. Blood also transports immune cells and helps regulate body temperature and pH, supporting overall homeostasis. Digestion is handled by the digestive system, protection against infection is primarily the immune system, and storage of minerals and vitamins occurs in bones, liver, and other tissues, not in the cardiovascular system.