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Related Experiment Videos

Bilateral accessory digastric muscles.

M Traini

    Anatomia Clinica
    |January 1, 1983
    PubMed
    Summary
    This summary is machine-generated.

    This study describes four accessory digastric muscles in the submandibular region, with three exhibiting an unusual bilateral fusion with the anterior belly of the digastric muscle. These findings detail rare anatomical variations in the human neck musculature.

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    Area of Science:

    • Anatomy
    • Morphology
    • Human Anatomy

    Background:

    • The submandibular region contains complex musculature crucial for oral functions.
    • Aberrant muscle formations can impact anatomical understanding and surgical approaches.
    • Accessory muscles in this region are infrequently documented.

    Purpose of the Study:

    • To describe four distinct aberrant muscles identified in the submandibular region.
    • To detail the attachments and relationships of these accessory muscles.
    • To highlight an unusual bilateral arrangement involving fusion with the digastric muscle.

    Main Methods:

    • Gross anatomical dissection of the submandibular region.
    • Detailed observation and documentation of aberrant muscle morphology.

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  • Analysis of muscle attachments to the mylohyoid raphe, mandible, and hyoid bone.

    • Main Results:

    • Four accessory digastric muscles were identified in the submental triangle.
    • All accessory muscles were attached to the mylohyoid raphe.
    • Three muscles fused with the ipsilateral anterior belly of the digastric, creating a bilateral anomaly; one muscle attached to the mandible.

    Conclusions:

    • Accessory digastric muscles represent rare anatomical variations.
    • The described bilateral fusion presents an unusual muscular arrangement in the neck.
    • Understanding these variations is important for anatomical studies and clinical practice.