Biology can be sometimes very interesting, but sometimes a bore too! It can be very interesting and informative at times. The only problem is, all these things must be MEMORIZED!!! Our blood plays an important role in our body. It's a medium of transport, a regulation system, and also for protection from bacteria and viruses...What does our blood transport? It's amazing to know what this watery liquid can do. It transports oxygen from our lungs to throughout the body, carbon dioxide to the lungs, nutrients, hormones, and waste products to the excretory organs. Our blood also regulates our pH, our body temperature, and the water content in our body cells... What do blood consist of? 55 % plasma and 45 % cellular components. The cellular components are erythrocytes (red blood cells), leucocytes (white blood cells), and thrombocytes (platelets)... Each of these have a specific functions of their own.
Plasmas for an instance, is to for clotting blood, when we get a cut or wound. Plasma consists of albumin, fibrinogen (for clotting) and immunoglobulin (antibodies).
Erythrocytes, the red blood cells, is for transporting gases. It can live about 120 days, then it'll be destroyed, by the spleen and liver. This cell, is very small, and doesn't have a nucleus...
The leucocytes, the white blood cells, function as protection. There are many types of white blood cells. A few examples are neutrophils (engulf and digest bacteria), eosinophils (releases enzymes to combat inflammation), basophils and others more... They are all made by the bone marrow. Platelets, functions the same as plasmas. They help in blood clotting. They are larger fragments of the bone marrow...
Fascinating eh? But LOADS to memorize... HELP!
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