The human body is designed to function in a manner that every part works together cooperatively just like a clock. Like a clock, no part can work alone to make it tick; just like no organ or system is superior to another as every system is reliant on the next. Without all of them the body would not be able to function. The cardiovascular system, digestive system, and the respiratory system, are three of a series of systems that heavily rely on each other as they are all closely interrelated and directly linked together. In each system there are several examples where another systems assistance is required.
The main function of the respiratory system is to inhale air (oxygen in particular) and exhale waste (carbon dioxide in particular). Oxygen is breathed in through the mouth or nose into the lungs. Next, ?02 ? is diffused through the alveolar walls and into deoxygenated red blood cells. Carbon dioxide (waste) is then transported and diffused back through the alveolar walls and exhaled.
The cardiovascular systems main role is to circulate blood around the body. The blood it transports consists of nutrients, gases and waste products. Within this system, the main organs involved are blood, arteries, veins, heart and the lungs.
The core purpose of the digestive system is to absorb nutrients which are vital in maintain and regulate the body. Enzymes secreted within the digestive system have a job of breaking down the food we eat e.g. proteins into amino acids, starch into glucose and fats into a mixture of fatty acids and glycerol.
The cardiovascular system is reliant on the respiratory system as without oxygen it is unable to create oxyhaemoglobin to transport to cells which would then lead to cellular deficiency. In the respiratory system Oxygen is inhaled and goes down the trachea in order to enter the lungs. From there, the oxygen enters the alveoli and diffuses through the alveolar wall before diffusing through the capillary wall and entering the cardiovascular system. Oxyhaemoglobin is then transported to cells around the body. In addition, the respiratory system and cardiovascular system are both reliant on each other to eliminate waste gasses (carbon dioxide). Carbon dioxide is transported as a waste product within red blood cells when travelling back to the heart in the cardiovascular system. This needs to be exhaled as too much carbon dioxide present within the blood causes acidosis. The gas leaves the blood using the same method oxygen used to enter the blood. It is then exhaled through the respiratory system. Here is it evident that both systems are required for the success of gas exchange. If the gas exchange was not able to be performed successfully then cells within the body would die and so would we.so the interrelation between these two systems is imperative
