El geniohioideo es un músculo suprahioideo del cuello. Se encuentra a ambos lados de la línea media del cuello, en profundidad respecto del músculo milohioideo. Inserciones: surge de la columna mental inferior de la mandíbula. Luego discurre en dirección inferior y posterior para unirse al hueso hioides. Acciones: deprime la mandíbula y eleva el hueso hioides. Inervación: raíces nerviosas C1 que discurren dentro del nervio hipogloso. Irrigación sanguínea: rama sublingual de la arteria lingual. By TeachMeSeries Ltd (2026) Fig. 1: vista lateral del cuello en la que se destacan tres de los músculos suprahioideos (el digástrico, el milohioideo y el estilohioideo). By TeachMeSeries Ltd (2026) Fig. 2: vista anterior del cuello con los músculos suprahioideos destacados. Pro Feature - 3D Model You've Discovered a Pro Feature Access our 3D Model Library Explore, cut, dissect, annotate and manipulate our 3D models to visualise anatomy in a dynamic, interactive way. Learn More Frequent questions What is the geniohyoid muscle? The geniohyoid muscle is a suprahyoid muscle located in the neck, positioned bilaterally to the midline and deep to the mylohyoid muscle. It plays a crucial role in the movement of the jaw and hyoid bone. What are the attachments of the geniohyoid muscle? The geniohyoid muscle originates from the inferior mental spine of the mandible and extends inferiorly and posteriorly to attach to the hyoid bone. This positioning allows it to effectively perform its functions. What actions does the geniohyoid muscle perform? The geniohyoid muscle depresses the mandible and elevates the hyoid bone during swallowing and speaking. These actions are vital for proper oral and pharyngeal function. How is the geniohyoid muscle innervated? The innervation of the geniohyoid muscle comes from the C1 spinal nerve roots, which travel within the hypoglossal nerve. This nerve supply is essential for muscle contraction and movement. What is the blood supply to the geniohyoid muscle? The geniohyoid muscle receives its blood supply from the sublingual branch of the lingual artery. This vascularisation is important for maintaining muscle health and function. Rate This Article