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How many muscles we take for smiling ????????

When we make facial expressions, we're essentially transmitting a packet of information that can be received, read and interpreted by others. By contracting or expanding our facial muscles in different degrees and combinations, we can produce thousands of different messages that provide cues to our overall emotional state, our short-term feelings about our immediate environment, our mental well-being, our personality and mood, our physical health, our creditability and whether or not we view others as being creditable.

The smile -- transmitted either consciously or subconsciously -- is viewed across cultures as a sign of friendliness, especially when greeting someone. Frowns, too, are generally recognized as indicating sadness or disapproval.

There are 43 muscles in the face, most of which are controlled by the seventh cranial nerve (also known as the facial nerve). This nerve exits the cerebral cortex and emerges from your skull just in front of your ears. It then splits into five primary branches: temporal, zygomatic, buccal, mandibular and cervical. These branches reach different areas of the face and enervate muscles that allow the face to twist and contort into a variety of expressions.

However, nobody has really come up with a definitive number for how many muscles it takes to smile or frown -- one person's smile is another person's smirk. Also, not everyone has the same number of facial muscles; some have more, enabling a wider range of expression, while some people actually have 40 percent fewer.


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