Victor Forge
The human face has around 30 muscles on each side, depending on how they are counted. These muscles are striated muscles that link the facial skin to the skull bone and allow us to perform important daily functions, such as eating and expressing emotions. There are 43 muscles in the face that are responsible for revealing emotions, even fleeting ones. Some claim it takes 43 muscles to frown and 17 to smile, while others say it takes 26 to smile and 62 to frown.
| Characteristics | Values |
|---|---|
| Number of facial muscles | 43 |
| Number of muscles used to smile | 17 or 26 |
| Number of muscles used to frown | 43 or 62 |
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What You'll Learn
There are 43 facial muscles
There are 43 muscles in the human face. These muscles are striated muscles that link the facial skin to the skull bone. They are responsible for important daily life functions, such as mastication and emotion expression. Facial muscles can be categorised into facial expression (mimetic) and mastication muscles. The facial nerve (cranial nerve or CN VII) innervates the facial expression muscles, while the trigeminal nerve's mandibular division (CN V3) innervates the muscles of mastication. Categorisation based on innervation is largely dependent on embryonic origin, which does not always correlate with function.
The number of muscles used in different facial expressions varies. For example, it takes 17 muscles to smile, while it takes 43 muscles to frown. However, some sources claim that it takes 26 muscles to smile and 62 to frown. The discrepancy in the number of muscles used in different facial expressions highlights the complexity of facial expressions and the thousands of different messages that can be conveyed through various combinations of muscle contractions and expansions.
Dr Paul Ekman's research tool, the Facial Action Coding System (FACS), is used to decipher which of the 43 facial muscles are working at any given moment. This detailed knowledge of facial expressions has earned Dr Ekman a role in the movie industry, where he has consulted with animators from Pixar and Industrial Light & Magic to create lifelike expressions for cartoon characters.
The human face possesses around 30 muscles on each side, depending on how they are counted. This means that the total number of facial muscles can range from 60 to 86. The variation in the number of facial muscles highlights the complexity and diversity of facial anatomy.
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It takes 17 muscles to smile
The human face has around 30 muscles on each side, depending on how they are counted. These muscles are striated muscles that link the facial skin to the skull bone to perform important daily life functions, such as mastication and emotion expression. The facial muscles produce various movements but are often categorised into facial expression (mimetic) and mastication muscles.
The number of muscles it takes to smile or frown is a topic of debate, with some arguing that it takes more muscles to smile than to frown. When we make facial expressions, we contract or expand our facial muscles in different degrees and combinations, producing thousands of different messages that provide cues to our overall emotional state, short-term feelings about our immediate environment, mental well-being, personality, mood, physical health, and credibility.
Dr Paul Ekman's research tool, the Facial Action Coding System (FACS), can decipher which of the 43 muscles in the face are working at any given moment, even when an emotion is so fleeting that the person experiencing it may not be conscious of it.
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It takes 26 muscles to smile
The human face has around 30 muscles on each side, depending on how they are counted. These muscles are striated muscles that link the facial skin to the skull bone to perform important daily life functions, such as eating and expressing emotions.
The number of muscles it takes to smile is a contentious issue. Some claim it takes 17 muscles to smile, while others argue it takes 26. However, some naysayers claim the opposite, that it takes more muscles to smile than to frown.
The Facial Action Coding System (FACS), developed by Dr Paul Ekman, is a research tool that can decipher which of the 43 muscles in the face are working at any given moment. This system has been used by the FBI, the CIA and state and local police forces.
When we make facial expressions, we are 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 credibility and whether or not we view others as being credible.
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It takes 62 muscles to frown
The human face has around 30 muscles on each side, depending on how they are counted. These muscles are striated muscles that link the facial skin to the skull bone and allow us to perform important daily functions, such as eating and expressing emotions.
When it comes to making facial expressions, we contract or expand our facial muscles in different degrees and combinations to produce thousands of different messages. These messages can convey our overall emotional state, short-term feelings about our immediate environment, mental well-being, personality, mood, physical health, and credibility.
While there is some debate about the exact number, it is often claimed that it takes 43 muscles to frown and 17 to smile. However, some sources suggest that it takes 62 muscles to frown and 26 to smile. This idea is supported by Dr Paul Ekman's research, which focuses on deciphering which of the 43 muscles in the face are working at any given moment. Dr Ekman's work has been so influential that he has even consulted with animators from Pixar and Industrial Light & Magic to give lifelike expressions to cartoon characters.
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Facial muscles are striated muscles
The human face has around 30 muscles on each side, depending on how they are counted. Facial muscles are striated muscles that link the facial skin to the skull bone. They are also known as mimetic muscles and are only found in mammals. They are the only muscles that attach to the dermis.
Facial muscles are controlled by the facial nerve (cranial nerve VII) and are responsible for facial expressions. They are categorised into facial expression muscles and mastication muscles. The facial nerve innervates the facial expression muscles, while the trigeminal nerve's mandibular division innervates the muscles of mastication. Categorising these groups based on innervation makes categorisation largely dependent on embryonic origin, which does not always correlate with function.
Facial muscles are also responsible for transmitting information about our emotional state, short-term feelings, mental well-being, personality, mood, physical health, and credibility. By contracting or expanding our facial muscles in different degrees and combinations, we can produce thousands of different messages.
There are 17 paired and 1 unpaired sphincter muscle that constitute the facial musculature. They originate from the periosteum of the facial bones and insert into the skin, allowing for a limitless number of facial expressions.
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Frequently asked questions
There are around 30 muscles on each side of the face, depending on how they are counted.
Some claim it takes 17 muscles to smile, while others say it takes 26.
Some claim it takes 43 muscles to frown, while others say it takes 62.
