7 Fun Facts About Your Blood You Didn't Know

This video presents seven intriguing facts about blood, including the rapid production of red blood cells, the extensive network of blood vessels, the quick circulation time of blood, common and rare blood types, various blood group systems, blood donation storage durations, and the unique nature of the cornea. The video encourages viewer interaction and support through Patreon.

How many red blood cells does the body produce every second?

• Between 3 and 4 million

• Between 2 and 3 million

• Between 4 and 5 million

• Between 1 and 2 million

How many miles of blood vessels are in the adult human body?

• 30,000 miles

• 60,000 miles

• 120,000 miles

• 90,000 miles

What is the most common blood type in the United States?

• AB negative

• B positive

• A positive

• O positive

How many different recognized blood types are there?

• 40

• 10

• 20

• 30

Which part of the body does not require blood?

• Liver

• Heart

• Kidney

• Cornea