S11 Nasal Cavity, Sinuses and Ear - List of Structures

Lateral nasal wall

    • Nares
    • Nasal vestibule
    • Choanae
    • Spheno-ethmoidal recess
      • Opening of sphenoidal sinus
    • Superior nasal concha
    • Superior nasal meatus
      • Opening of posterior ethmoidal cells
    • Middle nasal concha
    • Middle nasal meatus
      • Ethmoidal bulla
      • Opening of middle ethmoidal cells
      • Ethmoidal infundibulum
        • Opening of frontonasal duct
      • Semilunar hiatus
        • Opening of anterior ethmoidal cells
        • Opening of maxillary sinus
    • Inferior nasal concha
    • Inferior nasal meatus
      • Opening of nasolacrimal duct

Nasal Cavity Structures:

Arteries

    • Ophthalmic a.
      • Anterior ethmoidal a.
        • Anterior septal brs.
        • Anterior lateral nasal brs.
      • Posterior ethmoidal a.
    • Maxillary a.
      • Third (pterygopalatine) part
        • Sphenopalatine a.
          • Posterior lateral nasal aa.
          • Posterior septal brs.
    • Facial a.
      • Superior labial br.
        • Nasal septal br.
      • Lateral nasal brs.

Nerves

    • Olfactory nn. (CN I)
    • Anterior ethmoidal n. (V1)
      • Internal nasal brs.
        • Medial nasal brs.
        • Lateral nasal brs.
      • External nasal n.
    • Maxillary n. (V2)
      • Nasopalatine n.
      • Posterior superior lateral nasal brs.
      • Greater palatine n.
        • Posterior inferior nasal nn.
      • Anterior superior alveolar n.
        • Nasal br.
      • Infra-orbital n.
        • Internal nasal br.

Nasal septum

    • Vomer
      • Ala
    • Ethmoid
      • Perpendicular plate
    • Septal nasal cartilage

Middle ear

Structures on the medial wall (labyrinthine wall)

  • Tympanic cavity
    • Oval window
    • Promontory
    • Round window
    • Tensor tympani m.
    • Stapedius m.
    • Stapes

Structures visible on the lateral wall (membranous wall)

    • Tympanic cavity
      • Tympanic membrane
      • Malleus
      • Incus
  • External acoustic meatus
  • Internal acoustic meatus
  • Stylomastoid foramen
  • Carotid canal
  • Jugular fossa
  • Jugular foramen
  • Petrous part of temporal bone
  • Mastoid cells
  • Pharyngotympanic (Eustachian, auditory) tube

Internal ear

    • Semicircular canals
    • Cochlea

Nerves of middle and internal ear

  • Facial n. (CN VII)
    • Chorda tympani
  • Vestibulocochlear n. (CN VIII)
  • Glossopharyngeal n. (CN IX)
    • Tympanic c.
      • Tympanic plexus