Geniohyoid muscle
Geniohyoid muscle is a narrow muscle situated superior to the medial border of the mylohyoid muscle, and close to the midline. It is named for its passage from the chin (genio-) to the hyoid bone.
Etymology[edit | edit source]
The term "Geniohyoid" is derived from the Latin words "genio", meaning chin, and "hyoid", referring to the hyoid bone to which it is attached.
Structure[edit | edit source]
The Geniohyoid muscle originates from the inferior mental spine on the back of the mandible, and it inserts into the body of the hyoid bone. It is a narrow muscle located above the medial border of the mylohyoid muscle and is close to the midline.
Function[edit | edit source]
The Geniohyoid muscle is responsible for pulling the hyoid bone upwards and forwards, which aids in swallowing and speech. It is innervated by the first cervical nerve via the hypoglossal nerve.
Clinical significance[edit | edit source]
Any damage or injury to the Geniohyoid muscle can lead to difficulties in swallowing, also known as dysphagia. It can also affect speech due to its role in moving the hyoid bone.
Related terms[edit | edit source]
See also[edit | edit source]
References[edit | edit source]
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