....the air? As you breathe in, you breathe in oxygen, and it travels down your trachea, where it branches off into your left and right bronchus, and then goes into your bronchials.
lungs
"circulatory"
Blood
blood provides oxygen to the body
Blood delivers oxygen.
It delivers oxygen to every part of the body.
Blood delivers oxygen.
purple
Blood transport oxygen.
Blood transport oxygen.
Blood transport oxygen.
It delivers oxygen to every part of the body.