How oxygen travels in our body? Why CO is poisonous to us? - truesciencebehindscience

Our earth's atmosphere consists of several gases like nitrogen(78%), oxygen(21%), Other gases (1%). But, here the question arises that if our atmosphere consists of several gases and we intake them all then how do we just utilize oxygen and release carbon dioxide. It's not compulsory that which gas we are intaking is oxygen only. We intake several gases present in our surroundings. Let's get into the blood with science behind science- 

While we intake air the most proportion of it is Nitrogen, 2nd most concentrated gas is Oxygen, and then comes other gases like argon, carbon dioxide, sulfur dioxide, etc. All these gases are inhaled by us and stored temporarily in alveoli(very small structures inside the lungs).

 Here comes the deoxygenated blood from the heart and through the Pulmonary artery it gets divided into small structures then into smaller structures, finally they came up as capillaries. There is a protein called hemoglobin it resides in the blood which comes from capillaries. This hemoglobin has an affinity to attach with either carbon dioxide or oxygen if, the proportion of oxygen is more it will attach with Oxygen and forms oxyhemoglobin, if carbon dioxide is high in proportion it will attach with carbon dioxide and forms carbaminohaemoglobin. 

 

Presently, through the process of diffusion oxygen comes out of alveoli and carbon dioxide present in the blood goes inside the alveoli. The blood which was deoxygenated now gets oxygenated due to oxygen diffusion. Carbon dioxide is stored up in the alveoli. While other gases present in alveoli that do not have an affinity to attach with hemoglobin are left in alveoli. When we exhale out the gases which were left in alveoli with also carbon dioxide which was diffused in alveoli by capillaries they get out through the nose.

Blood Circulation

While we were exhaling, the blood which was oxidized travel through the heart and is circulated to the whole body the oxygen in hemoglobin is used up by our body cells and carbon dioxide is produced. The blood is once more deoxidized, hemoglobin once more comes into position and takes carbon dioxide from body cells, and once more goes to the lungs' alveoli through the heart. once more oxygen is diffused to blood in capillaries and hemoglobin once more forms oxyhemoglobin.

While we were exhaling, the blood which was oxidized travel through the heart and is circulated to the whole body the oxygen in hemoglobin is used up by our body cells and carbon dioxide is produced. The blood is once more deoxidized, hemoglobin once more comes into position and takes carbon dioxide from body cells, and once more goes to the lungs' alveoli through the heart. once more oxygen is diffused to blood in capillaries and hemoglobin once more forms oxyhemoglobin.

This process continues simultaneously until the heart or any major organ stops working (means the death of a person).

But Have ever thought why carbon monoxide is called slow poison. So, lets discuss about this also. 

Carbon monoxide (CO) is a colorless, odorless, tasteless, flammable gas that is slightly less dense than air and highly toxic. When any carbon compound is combusted in lack of oxygen it forms carbon monoxide. In this compound there is one carbon atom and one oxygen atom which are in triple covalent bond.

As we know how Oxygen travels through all over our body. Carbon Monoxide chooses the same path only. Carbon monoxide is 210 times more reactive with hemoglobin than oxygen so, when we inhale if it goes inside our body than hemoglobin will attach with this gas and forms Carboxyhemoglobin. Now, carboxyhemoglobin flows with our blood and is transported to our many body cells. Here, our body cell's need oxygen to react with glucose to produce energy. But, our body cells are provided with carbon monoxide which are of no use at all.

This Carbon monoxide is being stored in little amounts. If somebody inhaled it for almost 2 hours it will start causing neurological symptoms such as difficulty in thinking or concentrating. It means it is one of the most deadliest substance in our environment.

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I conclude this topic as "PLEASE STOP POLLUTING OUR MOTHER EARTH".

HAIL MOTHERLAND