What is the only part of the body that cannot repair itself?
bones
teeth
muscles
heart
How many bones does an adult skeleton have?
206
316
97
186
What attaches muscles to the skeleton?
veins
rubber bands
paper clips
tendons
What is the name of the organ that filters waste products from the blood?
stomach
liver
kidneys
heart
How many teeth do adults have?
32
16
4
87
What is the name of the bone that protects the brain?
clavicle
skull
rib cage
tibia
What is the name of the organ we use to breathe?
staomach
nerve cells
lungs
heart
What is the largest organ in the human body?
lungs
heart
skin
brain
When you blink, how many muscles do you use?
about 200
about 2
about 20
about 2,000
What carries oxygen through your blood?
red blood cells
white blood cells
green veins
mail carrier
What is the name of the long pipe that shifts food from the back of your throat down to your stomach?
veins
stomach
nasal passage
esophagus
The bones around your chest that protect organs such as the heart are called what?
phalanges
ribs
skull
tibia
The bones that make up your spine are called what?
vertebrae
ribs
bone marrow
larynx
The innermost part of bones contains what?
veins
harder bone
sponge
bone marrow
What substance are nails made of?
bone
skin
keratin
calcium
The muscles found in the front of your thighs are known as what?
abdominals
quadriceps
triceps
glutes
