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- What are the facial muscles and what is their function?Answered by verified global health professionalsFacial muscles, primarily controlled by the facial nerve (cranial nerve VII), are crucial for expressing emotions and performing various functions. The frontalis muscle, located on the forehead, raises the eyebrows and wrinkles the forehead, while the orbicularis oculi, surrounding the eyes, facilitates blinking and expressions like winking. The zygomaticus major and zygomaticus minor, extending from the cheekbone to the mouth, elevate the corners of the mouth, contributing to smiling. The buccinator, situated in the cheeks, compresses the cheeks against the teeth, aiding in chewing and blowing. The orbicularis oris encircles the mouth, closing and protruding the lips for actions like kissing and speaking. The depressor anguli oris lowers the mouth's corners, creating a frown, while the depressor labii inferioris and mentalis, located in the lower lip and chin, respectively, contribute to expressions of doubt or sadness. The platysma, stretching from the chest and shoulder area to the jawline, tenses the neck skin and can lower the mandible, reflecting surprise or horror. Together, these muscles enable a wide range of facial expressions, essential for non-verbal communication and social interaction.Read moreDr. Arshad Arfin2 years exp · India · General physician
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Jul 5, 2024 · The muscles of facial expression are located in the subcutaneous tissue, originating from bone or fascia, and inserting onto the skin. By contracting, the muscles pull on the skin and exert their effects. They are the only group of …
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Jun 30, 2022 · The facial muscles, also known as craniofacial muscles, are a group of about 20 flat skeletal muscles lying under the skin of the face and scalp. Most facial muscles …
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Learn about the facial muscles that control facial expression and their origin, insertion and action. The facial muscles are divided into orbital, nasal and oral groups, and are innervated by the facial nerve.
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These muscles provide movement of the eyelid, eyebrow, and periorbital skin and are innervated by branches of the facial nerve [1].
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