How does the human body work?
Get simple answers about your body. Pick a part, turn it in 3D and tap to see what each piece does.
What does the human body look like inside?When do baby teeth fall out?What does the liver do?How many times does the heart beat in a day?What is the difference between an artery and a vein?What is the largest muscle in the body?How many bones are in the human body?Which part of the brain controls memory?Can you live with one kidney?Where does eye color come from?How long does food take to digest?How many bones are in the hand?Why do we get hiccups?Is it true that we only use 10% of our brain?
Body parts
The whole bodyWhat does the human body look like inside?
Nervous systemHow does the nervous system work?
BrainHow does the brain work?
EyeHow does the eye see?
EarHow do we hear?
NoseHow does the nose work?
Mouth and teethHow many teeth do we have?
Baby teethWhen do baby teeth fall out?
Skin and touchWhat does the skin do?
HeartHow does the heart work?
Blood and circulationHow does blood circulate around the body?
SpleenWhat does the spleen do?
Body defensesHow does the body fight germs?
Throat and voiceHow is the voice made?
LungsHow do the lungs work?
DigestionHow does digestion work?
LiverWhat does the liver do?
GallbladderWhat does the gallbladder do?
PancreasWhat does the pancreas do?
KidneysWhat do the kidneys do?
Reproductive systemHow does the reproductive system work?
PregnancyHow does a baby grow in the womb?
Glands and hormonesWhat are hormones?
SkeletonHow many bones are in the human body?
SkullHow many bones are in the skull?
SpineHow many vertebrae are in the spine?
HandHow many bones are in the hand?
KneeHow does the knee work?
FootHow many bones are in the foot?
MusclesHow many muscles are in the human body?
Body map
Every body system and its pages. Tap to open.