Circulatory System: Key Facts
Circulatory System: Key Facts
The circulatory system is responsible for transporting blood, nutrients, oxygen, and hormones throughout the body. It consists of the heart, blood vessels, and blood. The system helps regulate body temperature, fight infections, and maintain homeostasis.
Key facts about the circulatory system:
- Heart pumps blood through the body.
- Arteries carry oxygen-rich blood away from the heart.
- Veins return oxygen-poor blood back to the heart.
- Capillaries connect arteries and veins, allowing for nutrient and gas exchange.
- Blood is composed of red blood cells, white blood cells, platelets, and plasma.
- Circulatory system plays a crucial role in overall health and well-being.
