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