Impairment of the lungs clearance system leading to

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impairment of the lungs’ clearance system, leading to the build-up of poisonous substances, which results in lung irritation and damage increased risk of lung infection and symptoms such as coughing and wheezing permanent damage to the air sacs of the lungs. The circulatory system is centred on the HEART, a muscular organ that rhythmically pumps BLOOD around a complex network of BLOOD VESSELS extending to every part of the body. Blood carries the oxygen and nutrients needed to fuel the activities of the body’s tissues and organs, and it plays a vital role in removing the body’s waste products. An average-sized adult carries about 5 litres (9 pints) of blood. The human respiratory system is a series of organs responsible for taking in oxygen and expelling carbon dioxide. The primary organs of the respiratory system are lungs, which carry out this exchange of gases as we breathe. Red blood cells collect the oxygen from the lungs and carry it to the parts of the body where it is needed, according to the American Lung Association. During the process, the red blood cells collect the carbon dioxide and transport it back to the lungs, where it leaves the body when we exhale.
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