![Picture](/uploads/1/9/7/4/19749541/798865.jpg)
*The heart beats an average of 3 billion times in a persons
life.
*About 8 million blood cells are born and die each second in
the human body.
* Within a tiny drop of blood there are about 5 million
red blood cells.
*It takes about 20 seconds for a red blood cell to circulate
the whole body.
*If you stretched out all parts of the circulatory system it is long
enough to orbit the earth 2 and a half times.
*Red blood cells make about 250,000 trips around the body
before returning to the bone marrow where they were born to die.
life.
*About 8 million blood cells are born and die each second in
the human body.
* Within a tiny drop of blood there are about 5 million
red blood cells.
*It takes about 20 seconds for a red blood cell to circulate
the whole body.
*If you stretched out all parts of the circulatory system it is long
enough to orbit the earth 2 and a half times.
*Red blood cells make about 250,000 trips around the body
before returning to the bone marrow where they were born to die.