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Are the lips a muscle?
Yes, the lips are indeed composed of muscles. Orbicularis oris sphincter muscle
Questioner：Zoe Taylor 2023-04-06 14:03:57
The most authoritative answer in 2024
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Emma Parker——Studied at Columbia University, Lives in New York City. Currently working as a marketing manager for a fashion brand.
Hello, I'm an expert in the field of human anatomy and physiology. Let's dive into the question at hand.
**Yes, the lips are indeed composed of muscles.** Specifically, they are made up of four main muscles that are responsible for their movement and function. These muscles are:
1. Orbicularis oris - This is a sphincter muscle that encircles the mouth and is involved in puckering and closing the lips.
2. Buccinator - This muscle is thinner and is found on the inside of the cheeks. It helps in blowing out air and pressing the lips against the teeth.
3. Depressor labii inferioris - This muscle pulls the lower lip downward.
4. Levator labii superioris - This muscle lifts the upper lip.
These muscles are skeletal muscles, which means they are under voluntary control, allowing for conscious movement. They are also classified as fascicular muscles due to their arrangement of muscle fibers.
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Noah Thompson——Works at Amazon, Lives in Seattle, WA
Orbicularis oris muscle. It is sometimes known as the kissing muscle because it is used to pucker the lips. In human anatomy, the orbicularis oris muscle is a complex of muscles in the lips that encircles the mouth.read more >>+119962023-04-07 14:03:57
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