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Wander Lord

Interesting on art, nature, people, history

Blood – precious liquid

Blood - precious liquid

Blood – precious liquid


Blood is a liquid that carries nutrients and removes waste. It moves through the body’s cardiovascular system. The heart pumps blood through the blood vessels to all parts of the body. Blood is an important part of the body and it consists of cells. There are three main types of blood cell: red cells, white cells, platelets, and plasma. Red blood cells transport oxygen, white blood cells (leukocytes) help to keep the body healthy. The plasma is watery part of the blood, which contains nutrients, chemicals, hormones, and wastes.
For a day the heart of an adult man pumps about 10,000 liters of blood. The average heart rate of a healthy person is 60-80 beats per minute.

Every hour, more than 7 billion blood cells die in the human body. They are replaced by new ones, which are reproduced by the bone marrow and spleen. The average daily volume of renewable blood is approximately 25 grams.
Bone marrow’s weight is about 2.5 kg, but for 70 years of human life it produces about 1000 kg of leukocytes and 650 kg of red blood cells.
Everyone knows that every part or organ of the human body is supplied with oxygen through the circulatory system. However, the cornea is enriched with oxygen taken directly from the air and dissolved in tears.
Different blood groups were discovered only in 1930. Karl Landsteiner was awarded the Nobel Prize for this scientific fact.
James Harrison is known as the Man with the Golden Blood. He was born in 1936 and lives in Australia. When he was a teenager, he underwent a difficult operation, so the doctors had to search for 13 liters of donor blood. Later he became a permanent blood donor. Very soon it became known that the blood of Harrison contains unique antibodies. He is in the Guinness Book of Records, because on the basis of his blood, special medicines were made that saved the lives of more than 2 million (!) babies.
Icefish in Antarctica have completely colorless blood, because it does not contain hemoglobin. This is necessary to survive in cold water.
Pus is white blood cells that have died fighting courageously with the infection.
In Christianity, people drink red wine which symbolizes the blood of Jesus Christ.
Some artists create masterpieces using blood.

Blood – precious liquid