Dissection of ear from lateral aspect

Relation of right auricular cartilage to external auditory meatus; terminal branches of great auricular nerve

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Image #59-5

Dissection of ear from lateral aspect

Relation of right auricular cartilage to external auditory meatus; terminal branches of great auricular nerve

The posterior auricular muscle has been cut and the auricular cartilage retracted laterally.

1. Lesser occipital nerve
2. Posterior auricular muscle (cut across)
3. Auricular branch vagus nerve
4. Aberrant slip of posterior auricular muscle
5. Occipital branch of posterior auricular nerve
6. Posterior auricular nerve
7. Sternocleidomastoid muscle (superficial fascia reflected)
8. Upper pointer: Superior auricular muscle Lower pointer: Temporal fascia
9. Helix
10. Tragal plate
11. External acoustic meatus (opened posteriorly)
12. Conchal eminence
13. Posterior branch greater auricular nerve
14. Cartilaginous acoustic meatus
15. Communication between posterior auricular nerve and greater auricular nerve
16. Upper pointer: Antitragicohelical fissure Lower pointer: Tail of helix
17. Branch facial nerve (to intrinsic muscles of auricle)
18. Parotid gland
19. Greater auricular nerve