it takes 13 muscles to smile
There are many many muscles invovled in eating. The muscles of mastication (Temploralis, Masseter, Medial Pterygoid and Lateral Pterygoid, one of each on each side) are used to move the Mandible (jaw...
Muscles are not used to think. The brain is composed of neurons.
17 muscles
zygomaticus - It raises the lateral corners of the mouth upward (called the smiling muscle)
It takes 17 muscles to smile according to madsci.orgThat's 2.5 times less work than frowning, so smile! :)
Test Your Google-Fu With Trivia
What Is the Power Plate