Lateral nasal wall

• • Nares

  • Nasal vestibule

  • Choanae

  • Superior nasal concha

  • Superior nasal meatus

  • Middle nasal concha

  • Middle nasal meatus

    • Ethmoidal bulla

    • Ethmoidal infundibulum

    • Semilunar hiatus

  • Inferior nasal concha

  • Inferior nasal meatus

Nasal Cavity Structures:

Arteries

• • Maxillary a.

    • Third (pterygopalatine) part

Nerves

• • Olfactory nn. (CN I)

  • Maxillary n. (V2)

    • Nasopalatine n.

Nasal septum

• • Vomer

  • Ethmoid

    • Perpendicular plate

  • Septal nasal cartilage

Middle ear

Structures on the medial wall (labyrinthine wall)

• Tympanic cavity

  • Oval window

  • Promontory

  • Round window

  • Stapes

Structures visible on the lateral wall (membranous wall)

• • Tympanic cavity

    • Tympanic membrane

    • Malleus

    • Incus

• External acoustic meatus

• Internal acoustic meatus

• 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 plexus