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