What are the triangles of neck?

The three paired triangles are the submandibular (digastric), carotid, and muscular triangles. The unpaired triangle is the submental triangle.

What are the 2 main triangles of the neck?

Muscular triangle.

  • Carotid triangle.
  • Submandibular (digastric) triangle.
  • Submental triangle.

    • Why is the neck divided into a triangle?

    The use of the divisions described as the triangles of the neck permit the effective communication of the location of palpable masses located in the neck between healthcare professionals. The common swellings anterior of the midline are: Enlarged submental lymph nodes and sublingual dermoid in the submental region.

    What is in the occipital triangle?

    Occipital triangle (omotrapezoid triangle) anteriorly – by the posterior margin of the sternocleidomastoid muscle. posteriorly – by the trapezius muscle. inferiorly – by the inferior belly of the omohyoid muscle.

    What is in the submental triangle?

    The submental triangle harbors the submental lymph nodes that drain the mental region, the tip of the tongue, inferior lip, and incisor teeth. Also, the mylohyoid nerve and veins that drain into the anterior jugular vein traverse this region [2].

    What is posterior triangle of neck?

    The posterior triangle has the following boundaries: Apex: Union of the sternocleidomastoid and the trapezius muscles at the superior nuchal line of the occipital bone. Anteriorly: Posterior border of the sternocleidomastoideus. Posteriorly: Anterior border of the trapezius. Inferiorly: Middle one third of the clavicle.

    What is in the submandibular triangle?

    As previously mentioned, the roof of the submandibular triangle i.e. the first plane encountered surgically comprises of the skin and the superficial fascia. These enclose the platysma muscle and the subcutaneous fat. Also enclosed are the cervical and mandibular branches of the facial nerve (cranial nerve VII).

    Where is the only unpaired triangle located?

    Introduction. The submental triangle is the only unpaired triangle of the anterior triangle of the neck. It is limited by the body of the hyoid bone and the anterior bellies of the digastric muscle.

    Why is it called submental triangle?

    The submental triangle defines a sub-region of the anterior cervical region (anterior triangle of the neck). It is one of four smaller triangles within the anterior triangle of the neck and contains some important vascular structures.

    Where is digastric triangle?

    The submandibular triangle, also known as the digastric triangle, is bounded anteriorly by the anterior belly of the digastric muscle, posteriorly by the posterior belly of the digastric muscle, superiorly by the mandible, and inferiorly by the mylohyoid and hypoglossus muscles.