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This document provides an overview of the muscles of facial expression, including their classification, functions, nerve and blood supply, and clinical significance. It discusses 21 total facial muscles, grouping them into those of the scalp/forehead, eyes/eyebrows/nose, and mouth/lips/cheeks. Key points include that facial muscles originate from mesoderm and develop from pharyngeal arches, and are supplied by the facial nerve. Their coordinated actions allow for facial expression and speech. The document a

Author

siddu76

Language

EN