to exchange gases in the body.
Gases exit through the spincter, making the sound and smell we know as FART!
This exchange of gases does not depend how "hard" you breathe but operates on the principle of Diffusion
A haemal system is a network of vessels found in certain invertebrates that functions in circulation. It helps transport nutrients, gases, and waste products throughout the organism's body.
The three functions of the blood when the circulatory system is working with the respiratory system are to take in needed gases from the lungs, expel waste gases from the tissues, and carry hormonal messages that communicate the body's needs to the respiratory adn circulatory systems.
Diffusion
look it up in your biology book! a respiratory organ for the exchange of gases
The primary functions of the respiratory epithelium are to humidify and warm the air as it enters the respiratory tract, as well as to protect the underlying tissues from pathogens and foreign particles. Additionally, the respiratory epithelium is involved in the exchange of gases, such as oxygen and carbon dioxide, between the air and the blood in the lungs.
I do believe that the answer is erythrocytes. Erythrocytes are the formed element in blood that transport oxygen and carbon dioxide.
Earthworms utilize their moist skin for gas exchange through diffusion, while planarians have a branching system of tubes called flame cells that help transport gases using cilia-driven fluid movements. This difference in internal transport of gases reflects the varying complexities in respiratory systems between the two organisms.
oxygen
The respiratory system is a vehicle for gases to get from the atmosphere into the body, but the respiratory system itself does not transport oxygen and carbon dioxide to and from body cells.When oxygen reaches the alveolar region of the lungs (that's to say, where the alveoli are located) oxygen is exchanged with red blood cells that take the oxygen to the rest of the body.