For Providers -- Atlas of Human Anatomy

Tympanic membrane with auditory ossicle, the chorda tympani and ganglion, on the left side, seen from the internal surface.

Translated by: Ronald A. Bergman, PhD and Adel K. Afifi, MD, MS
Peer Review Status: Internally Peer Reviewed

a) Parietal bone (s. bregmatis).
b) Temporal bone, pars squamousa.
c) Temporal bone, pars mastoidea.
d) Temporal bone, pars petrosa.
e) Sphenoid bone, lesser wing.
f) Sphenoid bone, body.
g) Pterygoid process.
h) Mandible.
i) m. Medial pterygoid.
k) m. Tensor tympani.
l) Tympanic membrane (inner surface) with hammer and anvil.
m. Left auricle.
n) Parotid gland.
o) External carotid artery.
p) Posterior auricular artery.
q) Stylomastoid artery.
r) Maxillary artery.
s) Deep auricular artery.
t) Inferior alveolar artery.
u) Middle meningeal artery (between the branches of the anterior auriculotemporal nerve).
v) Pterygoid artery.

1. trigeminal nerve.
2. trigeminal nerve, major (large) root.
3. trigeminal nerve, lesser (small) root.
4. Gasserian ganglion (s. semilunar or trigeminal ganglion).
5. trigeminal nerve, ramus I (ophthalmic branch).
6. trigeminal nerve, ramus II (maxillary branch).
7. trigeminal nerve, ramus III (mandibular branch).
8. anterior auricular nerve.
9. inferior alveolar nerves.
10. lingual nerve.
11. pterygoid nerve.
12. otic ganglion.
13. nerves for m. tensor of soft palate.
14. nerves for m. tensor tympani.
15. facial nerve in facial canal.
16. chorda tympani.

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