Final answer:
The system that delivers oxygen to body cells and removes carbon dioxide is a combination of the respiratory and cardiovascular systems. The lungs in the respiratory system facilitate gas exchange, while the cardiovascular system transports gases throughout the body. This collaborative process is essential for cellular respiration and maintaining homeostasis.
Step-by-step explanation:
Respiratory and Cardiovascular Systems Working Together
The system that spreads oxygen through the body and brings carbon dioxide back to the lungs is a combination of the respiratory system and the cardiovascular system. The respiratory system is responsible for the exchange of gases between the body and the outside air. This intricate process of respiration includes the lungs, an organ of the respiratory system, where oxygen from the air is transferred to the blood, and carbon dioxide from the blood is released into the outside atmosphere.
This close-knit relationship between the respiratory and cardiovascular systems ensures that respiration happens efficiently. The circulatory system picks up oxygen for cellular use from the lungs and drops off carbon dioxide, a waste product of cellular metabolism, back to the lungs for removal. Additionally, the level of carbon dioxide in the blood is constantly monitored by the brain to regulate breathing rates, ensuring homeostasis.