Submandibular triangle

The Submandibular Triangle (also known as Digastric Triangle or Anterior Triangle of the Neck) is a significant anatomical region in the human neck. It is one of the four major triangles of the neck and plays a crucial role in the anatomy and medical study of the neck region.

Anatomy

The Submandibular Triangle is bordered by the inferior border of the mandible and the anterior and posterior bellies of the digastric muscle. The floor of the triangle is formed by the mylohyoid muscle, hyoglossus muscle, and the middle constrictor muscle of the pharynx.

Contents

The Submandibular Triangle contains several important anatomical structures. These include the submandibular gland, a portion of the submandibular lymph nodes, the facial artery and facial vein, and the hypoglossal nerve (cranial nerve XII).

Clinical Significance

Due to the presence of vital structures, the Submandibular Triangle is of significant clinical importance. Conditions such as infections, tumors, and lymphadenopathy can affect this region. Surgical procedures involving the Submandibular Triangle require a thorough understanding of its anatomy to avoid damage to the contained structures.

See Also

• Carotid Triangle
• Muscular Triangle
• Occipital Triangle
• Submental Triangle

References

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Submandibular_triangle

• Diagram of neck muscles showing the submandibular triangle
  Diagram of neck muscles showing the submandibular triangle
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  Anatomical illustration of the submandibular triangle
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  Submandibular gland and surrounding structures
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  Submandibular triangle and adjacent anatomical features