What two body systems are critical for the life support chain?

Question

Quizplus · Accepted Answer

The respiratory and cardiovascular systems are critical for the life support chain. The respiratory system provides oxygen to the body and removes carbon dioxide, while the cardiovascular system pumps the oxygenated blood to the body's cells and returns the deoxygenated blood to the lungs to be re-oxygenated. Without these two systems working together, the body would not receive the necessary oxygen and nutrients to survive.

What Two Body Systems Are Critical for the Life Support