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