NAME : ____________
DATE : ____________
In this guide we’ve learned about the human body from head to toe. But how much of that information do you currently have stored from ear to ear? (HINT: that’s where your brain is.) Get a number 2 pencil in your dominant hand and turn the page when I tell you to begin.
Wait for it.
Wait for it. . . .
BEGIN.
1. Where would you find the hardest substance in your body?
Your teeth
Your heart
Your bones
Your joints
2. A substance called melanin determines what about your hair?
Curliness
Thickness
Color
Length
3. What molecule in your body contains your entire biological instructions?
Carbon
Cholesterol
DNA
Hemoglobin
4. Which disease was completely eradicated by scientists by the late 1970s?
Smallpox
Influenza
Polio
Lupus
5. What happens in the space inside your bones?
Water is absorbed
Ligaments attach
Bile is stored
Blood cells are made
7. Fill in the blank. The difference between veins and arteries is that the veins __________?
Are smaller
Return to the heart
Carry oxygenated blood
Have valves
8. The cerebellum, hippocampus, and thalamus are all parts of what?
The lung
The brain
The digestive system
A cell
9. What’s the leading cause of death in America today?
Cancer
Diabetes
Car accidents
Heart disease
10. What do you do when the muscle called the diaphragm suddenly spasms?
Hiccup
Yawn
Sneeze
Swallow
12. What part of the digestive system absorbs most of the nutrients from your food?
The mouth
The stomach
The small intestine
The colon
13. A, B, AB, and O are the four major types of what?
DNA bases
Blood
Nerves
Viruses
14. What change happens in your eyes when you step into a dark room?
Your retinas move forward
Your corneas flatten
Your pupils expand
Your irises dim
15. Which type of muscle works without your having to consciously control it?
Skeletal
Fast-twitch
Slow-twitch
Smooth
16. Nerve impulses carry signals across tiny little gaps called what?
Synapses
Ribosomes
Capillaries
Fontanelles
17. Which type of blood cell fights infection for you?
Platelets
Red blood cells
White blood cells
Plasma
18. Where would you find one-quarter of all the bones in your body?
Your skull
Your ribs
Your spinal column
Your two feet
19. What is unusual about the drugs called placebos?
They suppress the immune system
They are addictive
They are vaccinations
They contain no medicine
20. What does your stomach use to break down food?
Hydrochloric acid
Insulin
Bilirubin
Cytokines
All right, pencils down! Turn the page to the answers and see how you did.
