The lungs excrete carbon dioxide as you breathe out. This is one way the body removes waste products.
Waste Removal by the Body
The body has several ways of removing waste products. Here's a brief overview:
- Lungs: Excrete carbon dioxide. As stated in the reference text, "Your lungs excrete carbon dioxide as you breathe out."
- Kidneys: Filter out waste and produce urine, removing nitrogen waste.
- Skin: Removes excess salt through sweat.
The Role of Lungs in Excretion
The lungs play a crucial role in the respiratory system, facilitating the exchange of oxygen and carbon dioxide. During inhalation, oxygen enters the lungs and is absorbed into the bloodstream. Simultaneously, carbon dioxide, a waste product of cellular respiration, is transported from the bloodstream to the lungs and then exhaled. This process effectively excretes carbon dioxide from the body.
