INTERNAL EAR

Vestibulocochlear organ
- BONY LABYRINTH
  - Vestibule
  - Elliptical recess; utricular recess
    - Internal opening of vestibular canaliculus
  - Vestibular crest
    - Pyramid of vestibule
  - Spherical recess; saccular recess
  - Cochlear recess
  - Maculae cribrosae
    - Macula cribrosa superior
    - Macula cribrosa media
    - Macula cribrosa inferior
- Semicircular canals
  - Anterior semicircular canal
    - Anterior bony ampulla
  - Posterior semicircular canal
    - Posterior bony ampulla
  - Common bony limb
    - Ampullary bony limbs
  - Lateral semicircular canal
    - Lateral bony ampulla
    - Simple bony limb
- Cochlea
  - Cochlear cupula
  - Base of cochlea
  - Spiral canal of cochlea
    - Osseous spiral lamina
      - Vestibular lamella
      - Tympanic lamella
      - Foramina nervosa
      - Hamulus of spiral lamina
    - Secondary spiral lamina
    - Internal opening of cochlear canaliculus
  - Cochlear septum
  - Modiolus
    - Base of modiolus
    - Lamina of modiolus
    - Spiral canal of modiolus
    - Longitudinal canals of modiolus
  - Scala vestibuli
  - Helicotrema
  - Scala tympani
- Internal acoustic meatus
  - Internal acoustic opening
  - Fundus of internal acoustic meatus
    - Transverse crest
    - Facial area
    - Vertical crest
    - Superior vestibular area
    - Inferior vestibular area
      - Foramen singulare
    - Cochlear area
      - Tractus spiralis foraminosus
- Perilymphatic space
  - Perilymph
  - Vestibular aqueduct
  - Cochlear aqueduct
- MEMBRANOUS LABYRINTH
  - Endolymphatic space
    - Endolymph
- VESTIBULAR LABYRINTH
  - Utricle
    - Utricular recess
  - Saccule
  - Semicircular ducts
    - Anterior semicircular duct
      - Anterior membranous ampulla
    - Posterior semicircular duct
      - Posterior membranous ampulla
    - Common membranous limb
      - Ampullary membranous limbs
    - Lateral semicircular duct
      - Lateral membranous ampulla
      - Simple membranous limb
  - Utriculosaccular duct
    - Utricular duct
    - Saccular duct
  - Endolymphatic duct
    - Endolymphatic sac
    - Ductus reuniens
    - Maculae
      - Macula of utricle
      - Macula of saccule
      - Otolithic membrane
        
        Otolith
        
        Striola
    - Ampullary crest
      - Ampullary groove
      - Ampullary cupula
- COCHLEAR LABYRINTH
  - Scala media
- Cochlear duct
  - Vestibular surface; vestibular membrane Reissner
  - External surface
    - Stria vascularis
    - Spiral prominence
    - Vas prominens
    - Spiral ligament
  - Tympanic surface; spiral membrane
    - Basal crest; spiral crest
    - Basal lamina
    - Vas spirale
  - Spiral limbus
    - Tympanic lip
    - Vestibular lip
    - Acoustic teeth
  - Tectorial membrane
  - Vestibular caecum
  - Cupular caecum
  - Spiral organ Corti
    - Reticular membrane
    - Inner spiral sulcus
    - Outer spiral sulcus
  - Spiral ganglion
- Vessels of internal ear
  - Labyrinthine arteries
    - Anterior vestibular artery
    - Common cochlear artery
      - Vestibulocochlear artery
      - Posterior vestibular branch
      - Cochlear branch
      - Proper cochlear artery
      - Spiral modiolar artery
  - Vein of vestibular aqueduct
    - Veins of semicircular ducts
  - Vein of cochlear aqueduct
    - Common modiolar vein
      - Vein of scala vestibuli
    - Vein of scala tympani
    - Vestibulocochlear vein
      - Anterior vestibular vein
      - Posterior vestibular vein
      - Vein of cochlear window
  - Labyrinthine veins