Q: How long are the blood vessels...

Q: How long are the blood vessels in the body?

A: If they were laid end to end, the blood vessels would have a total length of about 60,000 miles, according to the World Book Encyclopedia. In an average man weighing about 154 pounds, the vessels would contain about 5.5 quarts of blood. In an average woman weighing 110 pounds, they would contain about 3.5 quarts. The loss of one quart of blood is generally enough to send an individual into shock leading to death.

Every day, the heart pumps at least 2,500 gallons of blood through the lungs and into the body.