How does an animal's respiratory system depend on its circulatory system?

Answer 1

Both are dependent on each other. The circulatory system is primarily blood flowing through your entire body carrying oxygen, nutrients and healing agents to the body especially vital organs like the brain. The oxygen being carried to and fro is collected via the respiratory system through the lungs. oxygenated blood is then distributed via circulating blood. An example of these two working together would be a patient with no heartbeat and barely breathing. Administering 1st aid would include reviving the heart (which is responsible for circulation) and also artificial breathing (which would assist the respiratory system to carry oxygenated blood to the brain) without the other, none of the aforementioned two would sustain human life.

Answer 2

The respiratory and circulatory systems are closely related. The respiratory system takes oxygen from air inhaled into the lungs and passes it into the blood. At the same time, it removes carbon dioxide form the blood and it is exhaled as a waste product.

The circulatory system carries oxygenated blood to all parts of the body that need it to function. As the body uses oxygen, it passes waste products back to the blood, including carbon dioxide. The blood continues its journey back to the lungs where the process begins again.

Answer 3

You need respiratory system to take in the oxygen and give away the carbon bi oxide. You have a pair of lungs for the same. The importance of the respiratory system can not be overemphasized. It gets the total blood supply equivalent to all the organs in your body. When all the organs get five litres of blood per minute, your lungs also get the same amount of blood supply. When during exercise, your organs get 25 litres of blood supply, your lungs get the same amount of blood supply. Your respiratory system will not work with out the blood supply. The oxygen is taken up by the red blood cells from your blood only. The carbon bi oxide is taken to the lungs by your blood only. The blood pressure is maintained at such a level that you do not get the interstitial fluid in pulmonary system.

Answer 4

Well they obviously need to breathe.