en:front-of-neck [Chapters]

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====== FRONT OF NECK ======

  * BORDERS:
    * - Superior - inferior border of mandible
    * - Medial - midline of neck
    * - Lateral - anterior border of sternocleidomastoid muscle
  * CONTENTS
      * Muscles: 
         * thyrohyoid, sternothyroid, sternohyoid muscles
      * Organs: 
         * thyroid gland, parathyroid glands, larynx, trachea, esophagus, submandibular gland, caudal part of the parotid gland
      * Arteries: 
         * superior and inferior thyroid, common carotid, external carotid, internal carotid artery (and sinus), facial, submental, lingual arteries
      * Veins: 
         * anterior jugular veins, internal jugular, common facial, lingual, superior thyroid, middle thyroid veins, facial vein, submental vein, lingual veins
      * Nerves: 
         * vagus nerve (CN X), hypoglossal nerve (CN XII), part of sympathetic trunk, mylohyoid nerve
  * Subdivisions:
    * - Muscular (omotracheal) triangle
      * Borders
        * Superior - hyoid bone
        * Lateral - superior belly of omohyoid and anterior border of sternocleidomastoid
        * Medial - midline of neck
      * Contents 
        * Muscles: thyrohyoid, sternothyroid, sternohyoid
        * Vessels: superior and inferior thyroid arteries, anterior jugular veins
        * Viscera: thyroid gland, parathyroid glands, larynx, trachea, esophagus
    * - Carotid triangle
      * Borders 
        * Anterior - superior belly of omohyoid muscle
        * Superior - stylohyoid and posterior belly of digastric muscles
        * Posterior - anterior border of sternocleidomastoid muscle
      * Contents 
        * Arteries: common carotid, external carotid (and branches except maxillary, superficial temporal and posterior auricular), internal carotid artery (and sinus)
        * Veins: internal jugular, common facial, lingual, superior thyroid, middle thyroid veins
        * Nerves: vagus nerve (CN X), hypoglossal nerve (CN XII), part of sympathetic trunk
    * - Submandibular triangle
      * Borders 
        * Superior - inferior border of mandible
        * Lateral - anterior belly of digastric muscle
        * Medial - posterior belly of digastric muscle 
      * Contents 
        * Viscera: submandibular gland and lymph nodes (anteriorly), caudal part of the parotid gland (posteriorly)
        * Vessels: facial artery and vein, submental artery and vein, lingual arteries and veins
        * Nerves: mylohyoid, hypoglossal (CN XII)
    * - Submental triangle
      * Borders 
        * Inferior - hyoid bone
        * Lateral - anterior belly of digastric muscle
        * Medial - midline of neck
      * Contents 
        * Anterior jugular vein, submental lymph nodes


====== ANTERIOR TRIANGLE OF NECK ======

{{:anatomy:neck-ant_triangle.png|}}

{{:anatomy:suprahyoid_and_strap_muscles.png}}