All organs in the body need oxygen to function. However, the organ that directly takes in oxygen from the air we breathe is the lungs.
The lungs are responsible for the exchange of gases between the air and the bloodstream. When we inhale, oxygen enters the tiny air sacs in the lungs called alveoli. Oxygen then diffuses into the surrounding capillaries, which are tiny blood vessels, and is transported throughout the body by red blood cells.
Here are some key points:
- Red blood cells play a vital role in transporting oxygen to the body's tissues.
- The cardiovascular system ensures that oxygen-rich blood reaches all parts of the body.
- The respiratory system, which includes the lungs, is responsible for taking in oxygen and removing carbon dioxide.
