Vocalis muscle
Vocalis muscle
The Vocalis muscle is one of the Intrinsic laryngeal muscles that controls the tension and length of the Vocal folds. It is the innermost part of the Thyroarytenoid muscle and is primarily responsible for adjusting the pitch and tone of the voice.
Structure[edit | edit source]
The vocalis muscle originates from the lateral wall of the Thyroid cartilage and inserts into the Arytenoid cartilage. It is located parallel to the Vocal ligament and is covered by the Mucous membrane of the larynx.
Function[edit | edit source]
The vocalis muscle adjusts the tension of the vocal folds by relaxing or contracting. This changes the pitch and tone of the voice. The muscle also helps to close the Glottis during swallowing to prevent food and liquid from entering the Trachea.
Clinical significance[edit | edit source]
Damage to the vocalis muscle can result in voice disorders such as Dysphonia or Aphonia. Treatment may involve Speech therapy, Voice therapy, or surgery.
See also[edit | edit source]
References[edit | edit source]
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Contributors: Prab R. Tumpati, MD