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The muscles involved in the act of smiling are primarily the zygomaticus major and minor, as well as the orbicularis oculi. These muscles work together to lift the corners of the mouth and create the characteristic expression of a smile.

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6mo ago

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Related Questions

Which nerve control smiling?

The facial nerve, also known as cranial nerve VII, controls the muscles of facial expression, including those involved in smiling. It originates in the brainstem and innervates the muscles of the face, allowing for various facial movements, including smiling.


Is it true that you exercise 30 muscles when you smile?

No, the exact number of muscles used when smiling is debated among experts. While it is often mentioned that smiling uses 17 facial muscles, this number can vary depending on the source. Nevertheless, the act of smiling does engage multiple muscles in the face.


What muscles act in plantar flexion?

popliteus is not involved in plantarflexion...its involved in leg flexion


Does smiling take more muscles than frwoning?

Smiling uses less than half the number of muscles compared to frowning (17 to 42).


Which type of smiling occurs as a response to an external stimulus?

Duchenne smiling occurs as a response to an external stimulus. It involves the activation of both the mouth muscles (raising the corners of the mouth) and the eye muscles, creating genuine or spontaneous smiles.


How many muscles are used while smiling?

about 8 or 10


Does smiling help to stop wrinkles?

Sure does, and it uses lots less facial muscles, too. Smiling uses about 7 facial muscles, where frowning uses 54.


What actions require the use of the most muscles?

Smiling. : ) No, actually it is frowning.


What requires more muscles frowning smiling jumping or chewing?

frowningfrowningchewingsmiling


Is smiling with your cheeks really all about using your facial muscles?

Yes.


When you plantar flex a foot what changes occur within the muscles involved?

Plantar flexion is the act of flexing the muscles of the toe and foot toward the sole. the muscles involved in this process are often stretched which for some, can reduce heel pain and the pain caused by flat feet.


What muscles are not involved with inspiration?

During inspiration, the primary muscles involved are the diaphragm and intercostal muscles. Muscles not involved in this process include the abdominal muscles and certain back muscles, such as the latissimus dorsi, which primarily assist with other movements rather than inhalation. Additionally, while accessory muscles like the sternocleidomastoid and scalene muscles may aid in deep or labored breathing, they are not required for normal inspiration. Thus, many core and upper body muscles do not play a direct role in the act of inhaling.