We find out why some humans squirt saliva from their mouth as a fine jet of spit.
The tongue is the strongest muscle in the body. If it is exerted against a pool of saliva trapped under it, the saliva will find a way to exit post-haste. grizelda, Sat, 9th Nov 2013
I sometimes get a similar effect when yawning, normally as I am starting to salivate - it rarely works twice. I guess because my salivary glands in the sides of my mouth get over full, and the yawning stretches and compresses them, squirting the saliva out. daveshorts, Tue, 12th Nov 2013
At last a question of the week to which I can contribute!