The face is the first stage for emotional expression, and behind it is a complex and delicate muscle system – facial expression muscles. These muscles not only shape our emotions, but also carve out traces of time as time goes by. This article will start from the structure and function of facial expression muscles, explore how they affect the formation of facial expressions and wrinkles, and share how modern skin care technology can help skin rejuvenation.
1. Structure and function of facial expression muscles
1. Basic characteristics of facial expression muscles
Facial expression muscles, also known as facial muscles, are a group of thin and superficial skin muscles, mainly distributed around facial fissures such as eye fissures, mouth fissures, and nostrils [3][5]. They originate from different parts of the skull and end at the skin. Because the muscle fibers are directly attached to the skin, they can move the skin when contracted, forming rich expression changes [1][3].
These muscles can be divided into two categories:
- Circular muscles: such as the orbicularis oculi and orbicularis oris, responsible for opening and closing the eyes and lips.
- Radial muscles: such as the frontalis, rihanna, and corrugator muscles, responsible for pulling the skin and expressing various emotions.
2. Main facial expression muscles and their functions
| Muscle name | Location and function description |
|---|---|
| Frontal muscles | Located on the forehead, responsible for raising and frowning eyebrows, participating in expressions such as surprise, and forming forehead wrinkles when contracted. |
| Orbicularis oculi | Surrounding the eyes, controlling eye closure and blinking, and producing crow’s feet at the corners of the eyes when smiling. |
| Rhythmic muscles | Starting from the parotid area, pulling the corners of the mouth outward and upward to form a smile. |
| Corrugator supercilii | Located between the eyebrows, tightening the eyebrows when contracted, forming frown lines (chuan-shaped lines). |
| Orbicularis oris | Surrounding the lips, controlling the opening and closing of the lips, participating in actions such as speaking and blowing. |
| Depressor anguli oris | Located on both sides of the mouth, pulls down the corners of the mouth to express sadness or dissatisfaction. |
| Masser | Located on the side of the cheek, controls the closure of the jaw and participates in chewing. |
| Temporalis | Located on both sides of the head, assists the opening and closing of the jaw. |
The coordinated movement of these muscles constitutes our rich daily expressions and is also the external expression of personality and emotions [1][2].
2. The formation mechanism of facial expression muscles and wrinkles
1. Causes of dynamic wrinkles
With the repeated contraction of facial expression muscles, fine lines will appear on the surface of the skin, which are called dynamic wrinkles. Typical examples include:
- Crow’s feet: caused by the contraction of the orbicularis oculi muscle, radial fine lines appear at the corners of the eyes.
- Forehead wrinkles: Frequent activity of the frontal muscle causes horizontal wrinkles on the forehead.
- Glabellar lines: The contraction of the corrugator and depressor supercilii muscles forms vertical wrinkles between the eyebrows.
These wrinkles reflect the trajectory of emotions and are the natural mark of the interaction between skin and emotions[3][4][5].
2. The formation of static wrinkles
Long-term dynamic wrinkles gradually turn into static wrinkles after the skin loses elasticity and collagen, and they are still visible even when the face is expressionless. This process is affected by multiple factors such as age, ultraviolet rays, and lifestyle habits[4][5].
3. Muscle compensation and wrinkle aggravation
There is a compensatory mechanism between facial muscles: when the function of a certain muscle weakens, other muscles will over-activate to compensate, resulting in uneven local muscle tension, which in turn aggravates the formation and deepening of wrinkles[4].
3. Modern skin care technology helps to rejuvenate facial muscles
With the in-depth understanding of the structure and function of facial muscles, beauty technology is also constantly improving. Take the CellVibe cell repair machine launched by Yanis Beauty in South Korea as an example. It uses variable frequency ultrasonic technology to activate skin cells, promote collagen production, and improve skin elasticity and radiance[4].
This technology enhances the skin’s self-repair ability through deep massage and nutrition introduction, effectively relieves fine lines, wrinkles and skin sagging problems, and makes the skin rejuvenated.
4. Daily care suggestions
- Keep the skin moisturized and sun-protected to slow down the formation of wrinkles.
- Properly relax facial muscles to avoid excessive expressions that cause muscle fatigue.
- Combined with professional beauty equipment to promote collagen regeneration.
- Develop good living habits to avoid the damage of smoking, drinking and staying up late to the skin.
Facial expression muscles are the carriers of emotions and the carvers of the traces of time. Understanding their structure and function can help us take care of the skin more scientifically and delay the pace of wrinkles. With the help of modern technology and daily careful care, we can make the skin still bloom with confidence and brilliance in the flow of time.
*This article integrates professional information from multiple parties, aiming to reveal the mystery of facial expression muscles to readers and help scientific skin care and the shaping of youth. *
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[1] https://medskinplus.com/blogs/news/facial-muscle-analyze
[2] https://hanstudio0083.blog/sk-facial-muscles/
[3] https://baike.baidu.com/item/%E8%A1%A8%E6%83%85%E8%82%8C/8170480
[4] https://www.yanisbeauty.com/%E9%9D%A2%E9%83%A8%E8%A1%A8%E6%83%85%E8%B1%90%E5%AF%8C%E8%80%85%E5%B0%8F%E5%BF%83%EF%BC%81%E8%A1%A8%E6%83%85%E8%B1%90%E5%AF%8C%E6%9C%83%E5%8A%A0%E9%80%9F%E7%9A%BA%E7%B4%8B%E7%94%9F%E6%88%90%EF%BC%8C/
[5] https://www.sohu.com/a/643300381_120696510
[6] https://vocus.cc/article/65d2b6fcfd89780001413b08
[7] https://tw.voicetube.com/videos/43212
[8] https://smallcollation.blogspot.com/2013/02/anatomy-muscle-muscles-of-facial.html
[9] https://www.careonline.com.tw/2020/08/facial-expression.html
[10] https://baike.baidu.hk/item/%E9%9D%A2%E9%83%A8%E8%82%8C%E8%82%89%E5%9C%96/3253067
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