EAR (+3B)

 

A.  EXTERNAL EAR

1          pinna (auricle)

2          external auditory meatus (canal)

3          tympanic membrane (eardrum) 

4          fibrocartilage annulus

 

B.  MIDDLE EAR

5          tympanic cavity

6          tensor tympani muscles

7          Eustachian (auditory) tube

8          malleus (hammer)

8a        head of malleus

8b        manubrium of malleus

8c        anterior process of malleus

9          incus (anvil)

9a        short crus of incus

9b        long crus of incus

10        lentiform nodule

11        stapes (stirrup)

11a      head of stapes

11b      crus of stapes

11c      base of stapes

 

 

C.  INNER EAR (labyrinth)

12        vestibule

13        oval window (vestibular)

14        round window (cochlear)

15        lateral semicircular canal

15a      ampulla ossea lateralis

16        anterior semicircular canal

16b      ampulla ossea anterior

17        posterior semicircular canal

17c      ampulla ossea posterior

18        cochlea

19        vestibulocochlear nerve

            [auditory nerve, Nerve VIII]

20        internal carotid artery

21        tensor veli palatini muscle