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Larynx and Ear (Week6) (Laryngeal Area (Cartilage (ETC ACC) (Thyroid…

- - - - Laryngeal Prominence
      - Upper Boarder (C4)
      - Lower Boarder (C5)
    - - Attached to inner Thyroid Cartilage
      - Superior surface: SSE
        Inferior surface: RE
    - - (C6)
    - - Apex Process (upward)
      - Muscular Process (lateral)
      - Vocal Process (forward)
    - - Sesamoid bone
      - Superior to Arytenoid
    - - Sesamoid bone
      - Superior to Arytenoid
  - - - Recurrent Laryngeal CN10
        Vocal fold & Below
        Shorter White (SSE)
      - Internal/Superior Laryngeal CN10
        Vestibular fold & Above
        Upper Red (RE)
    - - External/Superior Laryngeal CN10
        Cricothyroid Muscle
      - Recurrent Laryngeal CN10
        All other muscles of phonation
  - - - Anterolateral: Infrahyoid Muscle, Platysma
      - Lateral: Thyroid Gland, Carotid Sheath
      - Superior: Base of tongue, Vallecula
      - Inferior: Trachea
      - Posterior: Anterior wall of laryngopharynx
    - - "Part of respiratory system between laryngopharynx and trachea"
      - "Extends from upper boarder of epiglottis to lower boarder of cricoid cartilage"
      - General Boundaries
  - - - Inferior horns of Thyroid Cartilage
        Facets on lateral aspect of Cricoid
      - Movement: Allow thyroid cartilage to tilt back and forth
    - - Base of Arytenoid
        Superior boarder of Cricoid lamina
      - Movement: Rotation & Translation of Arytenoid Cartilage
- - - - Thyroepiiglottis
      - Thyroarythenoid
      - Vocalis
      - Cricoarytenoid
        
        Posterior (Opens Rima Glottidis)
        
        Lateral
      - Arytenoid Epiglottis
      - Interarytenoid Muscles
        
        Transverse Arytenoid
        
        Oblique Arytenoid
      - Cricothyroid
    - - Motor
        
        (CN10) Vagus Nerve
        Recurrent Laryngeal (All except)
        External Laryngeal (Cricothyroid)
  - - - Sternohyoid (Most Superficial)
      - Sternothyroid
      - Thyrohyoid
      - Omohyoid
    - - Trapezius
      - Sternocleomastoid
    - - Platysma (Superficial)