1. The human body consists of nine systems: the skeletal system the
muscular system, the nervous system, the hormonal system, the
circulatory system, the digestive system, the respiratory system, the
immune system and the reproductive system.
2. The amount of pigment melanin in a person’s skin determines what color their skin will be. People with very little melanin have light colored skin, while people with large amounts of melanin have skin that is dark in color. Complete or partial absence of this pigment causes albinism.
3. There are 45 miles ( 72 km ) of nerves in the human body. And 100 billions of nerve cells in our body.
4. Human hair is almost indestructible. It cannot be destroyed by cold, climactic changes, water or other natural forces (except fire, as it would burn). It also can survive exposure to many kinds of acids and corrosive chemicals.
5. Human hair and fingernails are made up of same material. It is made of protein called keratin.
6. Average speed when a person sneeze is 100 mph ( 160km/h ). This is why people is required to cover their nose or mouth while sneeze, as to avoid spreading of germs and bacteria.
7. Average speed human cough is 60 mph ( 97 km/h ).
8. It is impossible for a person to keep their eyes open while sneezing.
9. The human heart has to pump blood back and forth through the 70,000 miles ( 112,654 km ) of blood vessels in the body once every minute.
10. Of the 206 bones in the human body, 1/4 are located in the feet.
11. Human intestinal could reach up to 200 meters.
12. The stomach has 35 million digestive glands.
13. Human eyes are capable of seeing more than 1 million simultaneous visual impressions and can distinguish between almost 8 million gradations of color.
14. Human eyes is 576 megapixel.
15. Cornea is the only living cell in body that do not require blood .
16. The human body has 10 trillion cells living within it.
17. Human have almost 60 % of the same DNA as a banana have.
18. 72 muscles are required to produce human speech, in other way, 72 muscles are needed in order for someone to talk.
19. Human thigh bone is the strongest in body, stronger as concrete, but it is actually hollow.
20. Sound that we hear when a seashell is placed ear our ear isn't the sound of ocean, but it is the sound of blood flow in veins around the ear.
2. The amount of pigment melanin in a person’s skin determines what color their skin will be. People with very little melanin have light colored skin, while people with large amounts of melanin have skin that is dark in color. Complete or partial absence of this pigment causes albinism.
3. There are 45 miles ( 72 km ) of nerves in the human body. And 100 billions of nerve cells in our body.
4. Human hair is almost indestructible. It cannot be destroyed by cold, climactic changes, water or other natural forces (except fire, as it would burn). It also can survive exposure to many kinds of acids and corrosive chemicals.
5. Human hair and fingernails are made up of same material. It is made of protein called keratin.
6. Average speed when a person sneeze is 100 mph ( 160km/h ). This is why people is required to cover their nose or mouth while sneeze, as to avoid spreading of germs and bacteria.
7. Average speed human cough is 60 mph ( 97 km/h ).
8. It is impossible for a person to keep their eyes open while sneezing.
9. The human heart has to pump blood back and forth through the 70,000 miles ( 112,654 km ) of blood vessels in the body once every minute.
10. Of the 206 bones in the human body, 1/4 are located in the feet.
11. Human intestinal could reach up to 200 meters.
12. The stomach has 35 million digestive glands.
13. Human eyes are capable of seeing more than 1 million simultaneous visual impressions and can distinguish between almost 8 million gradations of color.
14. Human eyes is 576 megapixel.
15. Cornea is the only living cell in body that do not require blood .
16. The human body has 10 trillion cells living within it.
17. Human have almost 60 % of the same DNA as a banana have.
18. 72 muscles are required to produce human speech, in other way, 72 muscles are needed in order for someone to talk.
19. Human thigh bone is the strongest in body, stronger as concrete, but it is actually hollow.
20. Sound that we hear when a seashell is placed ear our ear isn't the sound of ocean, but it is the sound of blood flow in veins around the ear.
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