Hyoid bone

Definition

The hyoid bone is a U-shaped bone located in the anterior neck between the chin and the thyroid cartilage. It serves as an attachment point for tongue and neck muscles, aiding in swallowing and speech.

5 Must Know Facts For Your Next Test

1. The hyoid bone is unique because it does not directly articulate with any other bones.
2. It consists of a central body and two pairs of horn-like projections called greater and lesser cornua.
3. The hyoid bone supports the root of the tongue and is connected to the larynx by ligaments.
4. Its position and attachments make it crucial for functions like swallowing, breathing, and phonation.
5. Fractures of the hyoid bone are rare but can occur due to trauma or strangulation.

Review Questions

• Where is the hyoid bone located in the human body?
• What makes the hyoid bone unique compared to other bones in the skeletal system?
• How does the hyoid bone contribute to speech and swallowing?

Related terms

Larynx: The larynx, or voice box, is an organ involved in breathing, producing sound, and protecting the trachea against food aspiration.

Thyroid Cartilage: The largest cartilage of the larynx, commonly known as Adam's apple, which protects vocal cords.

Tongue Muscles: A group of muscles attached to various structures including the hyoid bone that allow for movement necessary for speech and eating.