Question

Какая из мимических мышц не только учавствует в изменении выражения лица, но и помогает человеку есть и говорить?

Answer 1

Полагаю , что это жевательная мышца . 

Answer 2

The Mimetic Muscle Involved in Facial Expression, Eating, and Speaking

One of the mimetic muscles that not only participates in changing facial expressions but also helps a person eat and speak is the orbicularis oris muscle. This muscle is responsible for controlling the movements of the lips, allowing us to form words and articulate speech. It also plays a crucial role in eating and drinking by controlling the opening and closing of the mouth.

The orbicularis oris muscle is a circular muscle that surrounds the mouth. It consists of several muscle fibers that work together to produce various movements of the lips. When contracted, this muscle helps close the lips, creating a seal that prevents food and liquid from escaping the mouth. It also assists in the process of chewing and swallowing by coordinating the movements of the lips and jaw.

In addition to its role in eating, the orbicularis oris muscle is essential for facial expressions. It allows us to smile, pout, kiss, and perform other expressive movements of the lips. By contracting and relaxing different parts of the muscle, we can convey a wide range of emotions and communicate non-verbally.

Overall, the orbicularis oris muscle is a versatile muscle that serves multiple functions. It not only enables us to eat and speak but also plays a significant role in facial expression and communication.