The temporomandibular joint (TMJ) connects the lower jaw to the skull. You can feel your two TM joints and their movement by placing your fingers directly in front of your ears and opening your mouth.

From enjoying the great outdoors to playing sports safely, here's how to protect yourself and deal with emergencies.

Salty, sour, sweet — you couldn't taste any of that without a tongue. Find out how your tongue works in this movie.

What Is the Digestive System? The digestive system breaks down the food we eat into tiny parts to give us fuel and the nutrients we need to live. As food breaks down, we get amino acids from protein, ...

Whatever your child's age, it's important to be consistent when it comes to discipline. If parents don't stick to the rules and consequences they set up, their kids aren't likely to either. Here are ...

What Is Mitral Valve Prolapse? Mitral valve prolapse is a common heart condition. It happens when there’s a problem with how one of the heart's valves works. Heart valves keep blood moving through the ...

We see and hear about hearts everywhere. A long time ago, people even thought that their emotions came from their hearts, maybe because the heart beats faster when a person is scared or excited. Now ...

Puberty is the time when your body grows from a child's to an adult's. You'll know that you are going through puberty by the way that your body changes. Usually, these changes begin between the ages ...

Your eyes see, but how does vision happen? Find out how the eyes and brain work together in this eye video.

Newborns and infants can't lift their heads well. So they can get stuck in a position that blocks their breathing, called smothering or suffocation. Young children have better head control, but still ...

Everybody knows that some organs in the human body are necessary for survival: you need your brain, your heart, your lungs, your kidneys... KIDNEYS? Absolutely. Even though you won't find a ...

What Is a VP Shunt? A ventriculoperitoneal (VP) shunt is a thin plastic tube that helps drain extra cerebrospinal fluid (CSF) from the brain. CSF is the saltwater that surrounds and cushions the brain ...