7 Interesting Facts about Blood
Think you know all about blood? We guess not. Take a look at some revealing secrets about this precious fluid.
Blood is not only crucial for life but it is also quite interesting to know about. Even the primary functions of blood are quite surprising. The blood does the job of supplying oxygen and nutrients to tissues, eliminating waste, transporting hormones, regulating body pH and core body temperature. Image Courtesy: Getty
Blood is a common life saver as around 473 ml of donated blood can save up to three lives. Donated blood is separated into its basic components, the red cells, platelets and plasma. All three of the components can then be used individually to treat three different people with specific health conditions. Image Courtesy: Getty
The four main blood types are A, B, AB and O. Each blood type can be positive or negative for the Rhesus (Rh) factor. While AB positive is the universal recipient of red blood cells, O negative is the universal donor. Image Courtesy: Getty
It is estimated that the volume of blood in a human is approximately 7 percent of body weight. The average adult body with a weight of 65 to 80 kilograms will contain approximately 4.7 to 5.5 litres of blood. It would take 1,200,000 mosquitoes, each sucking once, to entirely drain an average human body of blood. Image Courtesy: Getty
There are three types of blood vessels; arteries, veins, and capillaries. The process of blood circulation involves carrying of blood away from the heart by the arteries. These capillaries connect the arteries to the veins. In turn, the veins carry the blood back to the heart. Over all, there are 100,000 miles of blood vessels in an adult human body. Image Courtesy: Getty
During the course of an average lifetime, the heart pumps nearly 1.5 million barrels of blood—enough to fill up 200 train tank cars. The heart pumps about 55-80 ml of blood with each beat. An adult heart pumps about 6,000-7,500 litres of blood every day. The average adult body contains about five litres of blood which constantly circulates throughout the body. Image Courtesy: Getty
It takes only 30 seconds for a red blood cell to make a complete circuit of your body. During their four-month lifespan, red blood cells make 250,000 trips around the human body. Image Courtesy: Getty
Plasma is 90 percent water and makes up 55 percent of blood volume. Plasma is a pale yellow mixture composed of water, proteins and salts. Type AB positive plasma can be given to patients of all other blood types, which is why AB plasma is also usually in short supply. Plasma is stored in frozen state and can be transfused up to one year after its collection. Image Courtesy: Getty
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