On Blood (Loss)
This is a scientific essay I decided to write for some reasons. Nostalgia (missing school, especially Biology)? Maybe. Information for a certain injured friend believing himself to be at the losing end of the deal and also an expert on blood types. Highly probable.
Blood is a specialized tissue required by us humans to fulfill functions, namely, transport of substances within the body, distribution of heat, defence against foreign agents (not soviet spies but viruses and bacteria) and for maintenance of osmoticity and pH, which sums up to integrating physiological processes. This will enable the body to achieve a constant internal environment. Blood contains several types of cell suspended in a fluid medium called plasma. The cellular constituents are: Red Blood Cells (RBC), White Blood Cells (WBC), Blood platelets and many other plasma proteins in blood plasma but I'm not going to name them all her to clog up your mind. Tag me if you really want to know.
Let us envision this scenario. An object hits you hard and bleeding occurs. This might mean that blood vessels are ruptured (though more likely if you are cut) and the red fluid that flows out is blood (you do not need to be a genius to know that). The amount that flows out depends on the amount of vessels ruptured and the extent of each rupture, which of course depends on the impact of the hit. You say blood gushed out like a fountain. I say either you are exaggerating or it's time to call 995/1777.
After your body lost a certain amount of blood, your body will try its best to replenish. That is why people still survive after blood donations. It is only after MASSIVE blood loss then do you need to be sent to hospital to receive a transfusion.
Another point to make, haemoglobin is broken down in the spleen and certain important elements are stored. Transferrin and iron will then reach the bone marrow and your new red blood cells will be synthesized there. Enough said on that. I'll be termed evil and unfeeling if I continue. To the sick one, rest well and nurse yourself back to health and I hope that there will be no psychological trauma that'll leave a scar.
I think if I start on Blood types now, tomatoes will start flying in my direction. I promise, I will write it next article. Or next next. Or next next next. Eventually I will. Really.
Adios!