Major components of the circulatory system

Answer 1

1. The heart: The central organ of the circulatory system, responsible for pumping blood throughout the body.

2. Blood vessels: Include arteries, veins, and capillaries that carry blood to and from the heart and throughout the body.

3. Blood: A fluid that transports oxygen, nutrients, hormones, and waste products throughout the body.

4. Lymphatic system: A network of vessels and organs that works in conjunction with the circulatory system to help maintain fluid balance and fight infections.

5. Spleen: An organ that filters blood and plays a role in the immune system.

6. Bone marrow: Responsible for producing red blood cells, white blood cells, and platelets.

7. Thymus gland: Produces hormones and plays a role in the development of the immune system.