Scientific Blood Facts You Won’t Believe are Real

Blood Facts

There are approximately 4 to 6 pints of blood in a human body. The color of blood varies from person to person and it’s often a dark red color for people with light skin color while it’s often a deep purple for people with darker skin colors.

Blood is made up of three different types: red cells, white cells and platelets. Red cells transport oxygen from the lungs to tissues and return carbon dioxide from tissues to the lungs while also releasing hemoglobin that carries oxygen in the blood. White cells are important for fighting infection and platelets form clots when we bleed.

Blood has been an important symbol in many societies through history. In ancient Greece, blood was associated with life and death, as reflected in the story of Prometheus, who created man from clay and then stole fire from Mount Olympus for them. In Slavic cultures it symbolized family ties as well as love.

We have a constant need for blood in the modern world. It is a vital part of our everyday lives. Some people donate, others volunteer and many of us will never have a chance to do either. But we all need to be educated about the facts surrounding blood and its uses.

Read on to learn more fascinating facts

Facts about Blood

1 Haemolacria is a rare physical condition that causes a person to produce tears of blood. Calvino Inman suffers from the disorder, which makes him weep tears of blood 5 times a day.

2 Saddam Hussein had a Quran written in his own

3 One pint of blood can save up to three lives.

4 Elizabeth Bathory killed up to 650 Hungarian virgin women just to bathe in their blood as an anti-aging practice.

5 Donated blood is sold in an open market that is a $4.5 billion a year industry.

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6. There are four major blood types: A, B, AB, and O.

7. The average adult has about 12 pints of blood in their body.

8. Blood transfusions help people who need it by giving them blood from a donor with the right type.

9. Blood is an essential part of our body and it is vitally important to most of the body’s functions.

10. Blood is a clear, red fluid that circulates through our body carrying oxygen and nutrients to all of the cells in the human body. We need blood to live!

11. Within your circulatory system, blood flows through your arteries and veins. Arteries are blood vessels that carry blood away from your heart to organs and tissues in your body. Veins are vessels that carry it back to your heart.

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12. Blood is the fluid that circulates around the body, carrying nutrients and oxygen to different parts of the body. It is one of the four basic bodily fluids, its main function being to transport oxygenated blood cells throughout the body.

13. Blood also carries nutrients, hormones, water-based chemicals called electrolytes, immunities cells called white blood cells, proteins for clotting reactions or protecting you from infection or disease.

14. The blood carries oxygen and nutrients to all parts of our body – it also carries away waste products.

15. Blood is made up of a liquid part called plasma and a solid part called the formed elements.

16. There are four types of cells in the formed elements: red blood cells, white blood cells, platelets and clotting cells.

17. Red blood cells carry oxygen from the lungs to all parts of the body while white blood cells fight infection from invading micro-organisms.

18. Platelets help to stop bleeding by forming together with fibrinogen to make a clot over any damaged area in your body.

19. Clotting cells form clots by using special substances called platelets and fibrinogen, which they release when an injury occurs.

Video: The Composition and Function of Blood

Of course we all know what blood is in a general sense but do you really know what it’s made of? Or what it does and why you will die if you lose too much?

Watch this fun and educational video to learn the answers to these questions and more.