How can I remember my hyoid muscles?
Mnemonic
- C: constrictor muscle (middle pharyngeal)
- H: hyoglossus muscle.
- D: digastric muscle (intermediate tendon)
- S: stylohyoid muscle.
- G: geniohyoid muscle.
- M: mylohyoid muscle.
- T: thyrohyoid muscle.
- O: omohyoid muscle.
What are hyoid muscles?
The hyoid muscles are superficial muscles in the neck which attach to the hyoid bone. These muscles act to stabilise the trachea and play a vital part in swallowing and speech. When the infrahyoid muscles contract, they depress the hyoid bone, allowing the suprahyoid muscles to contract and depress the mandible.
Where is hyoid muscles located?
Hyoid bone is white horizontal line near top. Infrahyoid muscles are below hyoid, while Suprahyoid muscles are labeled above. The suprahyoid muscles are four muscles located above the hyoid bone in the neck….Function.
| Muscle | Stylohyoid |
|---|---|
| Origin | Temporal styloid process |
| Insertion | Hyoid |
| Innervation | Facial nerve (CN VII) |
What does depressing the hyoid do?
The infrahyoid muscles are responsible for the positioning of the hyoid bone along with the suprahyoid muscles. They play an active role in swallowing and the movement of the larynx. The sternothyroid depresses the larynx whereas the thyrohyoid elevates it (when the hyoid bone is fixed). …
Which muscles work together to elevate the hyoid?
In detail, the digastric and stylohyoid elevate the hyoid during swallowing and help keep the mouth open. The geniohyoid moves the hyoid forward and supports the opening and lateral movement of the mandible.
What muscles raise the hyoid?
What muscle moves the hyoid bone?
Digastric
Digastric pulls the hyoid bone and the floor of the oral cavity upwards, thus helping in deglutition. The mylohyoid muscle also helps in elevating the floor of mouth and tongue, thus helping in deglutition and speaking. It also helps in the depression of the mandible when the hyoid bone is in a fixed position.
What muscles depress the hyoid?
Infrahyoid muscles: Together, the infrahyoid muscles play an active role in swallowing through the movement of the larynx. The omohyoid, sternohyoid, and thyrohyoid act to depress the hyoid bone. The thyrohyoid elevates the larynx whereas the sternothyroid depress the larynx.
What do infrahyoid muscles do?
Infrahyoid muscles: Together, the infrahyoid muscles play an active role in swallowing through the movement of the larynx. The omohyoid, sternohyoid, and thyrohyoid act to depress the hyoid bone.
Which is not an infrahyoid muscle?
The stylopharyngeus muscle is considered by many to be one of the strap muscles, but is not an infrahyoid muscle.