Question

how will you describe the sequence of oxygen,carbon dioxide and blood flow

Answer 1

Answer:

Oxygen from air to lungs to blood to tissues

Carbon di oxide from tissues to blood to lungs to outside

Answer 2

Sequence of oxygen, carbon dioxide and blood flow:

The foremost functioning of the respiratory framework is to take in oxygen and release out carbon dioxide. “Inhaled oxygen” enters lungs and achieves the alveoli. The layers of cells covering the alveoli and the encompassing vessels are each just a single cell thick and are in close contact with one another.

Oxygen goes rapidly through this air-blood hindrance into blood in vessels. Likewise, carbon dioxide goes from the blood into alveoli and then breathed out.  

Oxygenated blood goes from lungs through pneumonic veins and into left half of heart, which pumps blood to rest of the body. Oxygen-insufficient, carbon dioxide-rich blood comes back to the correct side of the heart through two huge veins, the unrivaled vena cava and the sub-par vena cava.

At that point the blood is pumped through pneumonic supply route to lungs, where it grabs oxygen and discharges carbon dioxide.