What is the major function of the circulatory system?

What is the major function of the circulatory system?

• A. To digest food
• B. To transport nutrients, gases, hormones, and waste products throughout the body
• C. To create and distribute energy
• D. To filter blood and remove toxins

Answer: (B)

The major function of the circulatory system is to transport nutrients, gases, hormones, and waste products throughout the body. This system plays a critical role in maintaining homeostasis by ensuring that essential substances reach the cells and that metabolic waste is efficiently removed. The heart pumps blood through a network of blood vessels, facilitating the delivery of oxygen from the lungs to the body's tissues while also carrying carbon dioxide back to the lungs for exhalation. Additionally, the circulatory system transports nutrients absorbed from the digestive tract and hormones produced by different glands, enabling communication and regulation between various body systems. By effectively managing the distribution of these key elements, the circulatory system sustains the physiological functions required for life. While digestion is important for breaking down food so nutrients can be absorbed, it is not the primary role of the circulatory system itself. Similarly, energy creation and distribution are mainly functions of metabolic processes in cells rather than a direct responsibility of circulation. Filtering blood to remove toxins is a function associated with the kidneys and other excretory systems, rather than the circulatory system itself.

The major function of the circulatory system is to transport nutrients, gases, hormones, and waste products throughout the body. This system plays a critical role in maintaining homeostasis by ensuring that essential substances reach the cells and that metabolic waste is efficiently removed.

The heart pumps blood through a network of blood vessels, facilitating the delivery of oxygen from the lungs to the body's tissues while also carrying carbon dioxide back to the lungs for exhalation. Additionally, the circulatory system transports nutrients absorbed from the digestive tract and hormones produced by different glands, enabling communication and regulation between various body systems. By effectively managing the distribution of these key elements, the circulatory system sustains the physiological functions required for life.

While digestion is important for breaking down food so nutrients can be absorbed, it is not the primary role of the circulatory system itself. Similarly, energy creation and distribution are mainly functions of metabolic processes in cells rather than a direct responsibility of circulation. Filtering blood to remove toxins is a function associated with the kidneys and other excretory systems, rather than the circulatory system itself.