5 Amazing Facts About The Blood You Probably Don’t Know

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Blood is the life-giving fluid that delivers oxygen to the cells of the body. It is a specialized type of connective tissue that consists of red blood cells, platelets, and white blood cells suspended in a liquid plasma matrix.

These are the basics, but there are many more surprising facts as well; for example, blood accounts for about 8 percent of your body weight and it contains trace amounts of gold.

So, In this article on EKO HOT BLOG, we would be looking at some amazing facts about the blood you probably don’t know.

1. Not All Blood Is Red

While humans have red coloured blood, other organisms have blood of varying colours. Crustaceans, spiders, squid, octopuses, and some arthropods have blue blood.

Some types of worms and leeches have green blood. Some species of marine worms have violet blood. Insects, including beetles and butterflies, have colorless or pale-yellowish blood.

The colour of blood is determined by the type of respiratory pigment used to transport oxygen via the circulatory system to cells. The respiratory pigment in humans is a protein called hemoglobin found in red blood cells.

2. Your Body Contains About a Gallon of Blood

The adult human body contains approximately 1.325 gallons of blood. Blood makes up about 7 to 8 percent of a person’s total body weight.

3. Blood Consists Mostly of Plasma

Blood circulating in your body is composed of about 55 percent plasma, 40 percent red blood cells, 4 percent platelets, and 1 percent white blood cells. Of the white blood cells in blood circulation, neutrophils are the most abundant.

4. There’s Gold in Your Blood

Human blood contains metals atoms including iron, chromium, manganese, zinc, lead, and copper. You may also be surprised to know that blood contains small amounts of gold. The human body has about 0.2 milligrams of gold that is mostly found in the blood.

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5. Blood Types Vary by Population

The most common blood type in the United States is O positive. The least common is AB negative. Blood type distributions vary by population. The most common blood type in Japan is A positive.

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