How come you can still drink when upside down?

Answer 1

Your tongue forces the liquid to the back of your throat and a series of contractions of the muscle around the oesophagus with start at the top near the throat and run down in a wave of contraction towards the stomach, carry the contents of the oesophagus into the stomach. The wave of contractions is termed peristalsis (peristalsis motion also occurs along the intestines moving the contents along to their final exit).

Answer 2

peristalsis. the muscles that make up your esophagous push the water against the force of gravity and then when it enters the stomach it is prevented from falling back down by a sphincter muscle which closes the opening.

Answer 3

Something called paristalisis.....its stong rhythmic contractions of your digestive system to force food or drinks down whether you are rightside up or upside down....

Answer 4

The muscles in your digestive system perform peristalsis, which pushes material down.

Answer 5

because the tongue muscle pushes the liquid down the throat even with gravity pulling it in the opposite direction

Answer 6

Because the muscular contractions of the throat are strong enough to defy gravity...;

Answer 7

Try "peristalsis" in Wikipedia.

Answer 8

Birds, however, need gravity so get their food down. That's why you never see them standing on their heads or flying in space - they would starve if they did.

Answer 9

I believe it was just a limited time drink, try searching for it online.

Answer 10

peristalsis