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Neck and Mediastinum - Coggle Diagram

- - - - Innervated by CN XI
        Divides anterior and posterior cervical triangles
    - - Facilitate Speaking, swallowing
      - Infrahyoid Muscles
        
        Steady or depress the hyoid bone
        
        Thyrohydoid
        
        Connects Thyroid to hyoid
        
        Omohyoid
        
        Connects shoulder to hyoid
        
        Sternohyoid
        
        Connects sternum to hyoid
      - Suprahyoid
        
        Anterior and Posterior Digastric muslce
        
        Superior attachment of hyoid bone
  - - - Superior thyroid: From External Carotid
      - Inferior Thyroid: from thyrocervical trunk
    - - Superior Thyroid Vein: From internal Jugular
      - Middle Thyroid Vein: From internal Jugular
      - Inferior Thyroid Vein: From brachiocephalic Vein
  - - - Runs with IJV and CCA in Carotid Sheath
    - - Descends on anterior scale
    - - Emerge between anterior and middle scalene
    - - Loop nerve that supplies strap muscles
    - - Dives into deep surface of trapezius and innervates SCM
    - - Emerge Superficially Posterior to the SCM
    - - Recur in proximity to trachea and thyroid gland
    - - deep, paravertebral location
  - - - Occurs at C4
    - - Detects Pressure
    - - Detects Blood Oxygenation
    - - Superior thyroid Artery
      - Facial Artery
      - Superficial Temporal
  - - - Vein of the brain, face, neck, and scalp
        Runs in Carotid Sheath
    - - Assists in draining face, neck, and scalp
        Superficial to SCM
    - - Variably present
        Aids in drainage of thyroid gland
  - - - Drains oral cavity, tongue, lip cancer
    - - Thyroid, Laryngeal Cancer
  - - - Boundaries
        
        Mandible
        SCM
        Median Line of Neck
      - Contents
    - - Boundaries
        
        SCM
        Trapezius
        Clavicle
      - Contents
        
        Cranial Nerve 11
        External Jugular Vein
        Roots of Brachial Plexus
        Cutaneous nerves of the cervical pleux
        Motor nerves of Cervical Plexus (Ansa Cervicalis, Phrenic Nerve)
    - - Boundaries
        
        Posterior digastric
        SCM
        Superior Omohyoid
      - Contents
        
        Common Carotid and Bifurcation
        External Carotid Artery
        Internal Jugular Vein
        Vagus Nerve
        Ansa Cervicalis
    - - Boundaries
        
        Mandible
        Anterior digastric
        Posterior Digastric
      - Contents
        
        Submandibular Gland
        Cranial Nerve 12 (Hypoglossal)
        Facial artery/vein
    - - Boundaries
        
        Bilateral anterior digastrics
        Hyoid Bone
      - Contents
        
        Submental lymph Nodes
        Mylohyoid
    - - Boundaries
        
        Superior Omohyoid
        SCM
        Median Line
      - Contents
        
        Superficial: Infrahydroid/Strap Muscles
        Deep: Thyroid Gland/Larynx
- - - - Left and right Brachiocephalic vein
        Upper Part of SVC
    - - Left Recurrent Laryngeal Nerve
        Vagus Nerve
        Phrenic Nerve
        Sympathetic Trunk
    - - Brachiocephalic
        Carotid
        Subclavian
    - - Esophagus
        Trachea
        Thoracic Duct
  - - - Thymus, some lymph nodes
  - - - Heart, Phrenic Nerves, pericardiacophrenic a/v
  - - - Intercostal Artery
        Bronchial Artery
        Esophageal Artery
    - - Azygos Vein and Arch of Azygos
        Hemi-and accessory Azygos
        (Intercostal Vein, Bronchial vein, Esophageal vein)
    - - Vagus Nerve
        Sympathetic Trunk
        Intercostal Nerves
    - - Thoracic Duct: Lymph from lower body