Our Amazing Blood Vessels Are 160,000 Kms Long
DID you know that if you took all the blood vessels out of an average child and laid them out in one line, the line would stretch over 60,000 miles (100,000 kms)? An adult’s would be closer to 100,000 miles (160,000 kms) long. In contrast, the entire earth’s circumference is only about 40,075 km. Can…...