Chondroglossus

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Chondroglossus[edit | edit source]

The chondroglossus is a small muscle located in the human tongue. It is considered a part of the hyoglossus muscle group, which plays a crucial role in the movement and function of the tongue. The chondroglossus is involved in the complex actions required for speech, swallowing, and mastication.

Anatomy[edit | edit source]

The chondroglossus muscle originates from the lesser cornu of the hyoid bone, a U-shaped bone situated in the anterior midline of the neck between the chin and the thyroid cartilage. The muscle fibers of the chondroglossus extend upward and forward to insert into the intrinsic muscles of the tongue.

Diagram of the tongue showing the position of the chondroglossus.

The chondroglossus is often considered a part of the hyoglossus muscle due to its close anatomical relationship and similar function. However, it is distinguished by its specific origin and insertion points.

Function[edit | edit source]

The primary function of the chondroglossus is to depress the tongue. This action is essential for the downward movement of the tongue, which is necessary for swallowing and speaking. By working in conjunction with other muscles of the tongue, the chondroglossus helps in shaping the tongue to produce various sounds and facilitate the passage of food from the mouth to the pharynx.

Clinical Significance[edit | edit source]

Dysfunction or damage to the chondroglossus muscle can lead to difficulties in speech and swallowing. Conditions such as dysphagia (difficulty swallowing) and dysarthria (difficulty speaking) may arise if the muscle is impaired. Understanding the anatomy and function of the chondroglossus is important for medical professionals in diagnosing and treating such conditions.

Related Structures[edit | edit source]

The chondroglossus is closely associated with other muscles of the tongue, including:

These muscles work together to control the complex movements of the tongue necessary for various oral functions.

Related Pages[edit | edit source]

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Contributors: Prab R. Tumpati, MD