Oblique arytenoid

Oblique arytenoid is a muscle of the larynx that plays a crucial role in vocal cord movement and voice production. The term "arytenoid" is derived from the Greek words "arytaina" meaning ladle and "eidos" meaning form, referring to the ladle-like shape of the arytenoid cartilages. The "oblique" part of the name refers to the direction of the muscle fibers.

Anatomy

The oblique arytenoid muscle is one of two muscles that make up the arytenoid muscles. The other is the transverse arytenoid muscle. Both muscles are located in the larynx, specifically on the arytenoid cartilages. The oblique arytenoid muscle extends from the base of one arytenoid cartilage to the apex of the other.

Function

The primary function of the oblique arytenoid muscle is to bring the arytenoid cartilages closer together. This action tightens the vocal cords, which is necessary for voice production. The muscle also assists in closing the laryngeal inlet, which prevents food and liquid from entering the trachea during swallowing.

Clinical significance

Damage to the oblique arytenoid muscle can result in voice changes, difficulty swallowing, and aspiration. Conditions that can affect the muscle include laryngeal paralysis, laryngeal cancer, and neurological disorders.

See also

• Arytenoid cartilage
• Larynx
• Vocal cords

References

Oblique arytenoid Resources
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