HYOID BONE

HYOID BONE

The hyoid bone is a unique, U-shaped bone in the human body located in the anterior neck, between the mandible and the larynx. It serves as an anchor for muscles associated with swallowing and speech.

📌Body (Corpus)

• The central, thickest part of the bone.
• Provides attachment for muscles like the geniohyoid, mylohyoid, and sternohyoid.

📌Greater Cornua (Greater Horns)

• Extend backward from the body.
• Serve as attachment points for the stylohyoid ligament and various muscles such as the hyoglossus and middle pharyngeal constrictor.

📌 Lesser Cornua (Lesser Horns)

• Small, conical projections at the junction of the body and greater horns.
• Attach to the stylohyoid ligament and provide support to the hyoid's suspension.

FUNCTION

📌Supports the tongue and serves as a base for muscles involved in swallowing, speech, and breathing.

📌Acts as a stabilizing structure for the pharynx and larynx.

ATTACHMENTS

📌provides attachments to the muscles of the floor of the mouth and the tomuscles of the floor of the mouth and the tongue above, the larynx below, and the epiglottis and pharynx behind.

BLOOD SUPPLY

 📌 Lingual artery

 INTERVENTIONS

📌  Mandibular nerve

📌 hypoglossal nerve

📌 facial nerve

DEFORMITIES 

1. Hyoid Bone Fracture:

Cause: During strangulation 

2. Hyoid Bone Syndrome (Inflammation of Surrounding Tissue)

3. Osteoradionecrosis  

4. Rare Bone Cancers