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Muscles for Facial Expressions

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The craniofacial muscles are a collection of approximately 20 thin skeletal muscles situated beneath the skin of the face and scalp. These muscles, primarily responsible for the vast array of human facial expressions, originate from the bones or fibrous structures of the skull and extend outwards to connect with the skin. While most skeletal muscles in the body are enveloped in thick fascia, facial muscles generally have a more delicate fascial covering, with the buccinator muscle being a...

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Charles Darwin proposed that facial expressions are an evolutionary adaptation for communication. He argued that these expressions are not influenced by culture but are universal across species. For example, a snarling expression with exposed teeth signals a threat in many animals, including humans. Darwin also suggested that displaying an emotion can intensify the feeling. Smiling, for example, could enhance one's sense of happiness. This idea laid the foundation for understanding the role...

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Related Experiment Video

Updated: Feb 9, 2026

$Subcutaneous Trigeminal Nerve Field Stimulation for Refractory Facial Pain$

Subcutaneous Trigeminal Nerve Field Stimulation for Refractory Facial Pain

Published on: May 10, 2017

Facial subcutaneous tumor

Aryé Weinberg¹, Andreas Eberhard Albers²

¹Prosper-Hospital, Department of Otorhinolaryngology, Head and Neck Surgery, Recklinghausen, Germany.

The Pan African Medical Journal

|June 8, 2018

Summary

No abstract available in PubMed .

Keywords:

Epidermal cyst cutaneous B-cell lymphoma cutaneous metastasis

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