A vampire is headed straight for you. "I vant to drink your blood," he hisses. To prevent the vampire from sucking the life force straight out of you, you decide to try to distract him with your amazing knowledge of blood. What, you don't know anything about blood? Better take this quiz to learn some fun facts to share with Dracula.
Question 1 of 20
How many liters of blood does the adult human body contain?
Question 2 of 20
How long does a red blood cell survive in the bloodstream?
Question 3 of 20
What is hemoglobin?
Question 4 of 20
What is a hematocrit?
Question 5 of 20
How does blood get its red color?
Question 6 of 20
What is the function of white blood cells?
Question 7 of 20
What does it mean when there's an increase of white blood cells in the body?
Question 8 of 20
There are six main types of white blood cells in the blood. Which type is the most common?
Question 9 of 20
What substance makes up the majority of plasma?
Question 10 of 20
If you are a universal donor, what blood type do you have?
Question 11 of 20
What are the two components that make up blood?
Question 12 of 20
What is the function of platelets in the blood?
Question 13 of 20
Where are blood cells produced?
Question 14 of 20
What is hematopoiesis?
Question 15 of 20
Which of the following helps to remove carbon dioxide (CO2) from the body?
Question 16 of 20
What is the name of the leftover fluid when plasma is clotted?
Question 17 of 20
What type of blood has both A and B antigens?
Question 18 of 20
How often can you donate blood?
Question 19 of 20
What is apheresis?
Question 20 of 20