045 | Sensory Innervation of the Ear

Anatomy For Emergency Medicine

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7y ago

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I’m entering a few months prep for the UK and Ireland exit exam in Emergency Medicine: the FRCEM. I’ll be adding lots of little notes on pearls I’ve learned along the way. A lot of my revision is based around the Handbook of EM as a curriculum guide and review of contemporary, mainly UK guidelines. I also focus on the areas that I’m a bit sketchy on. With that in mind I hope they’re useful.

You can find more things on the FRCEM on this site here.

This one is special and has turned into an AFEM episode

This seems to be a favourite for examiners and not something i use commonly in real life

4 Nerves involved (the biggies in bold)

auricolotemporal [V3]
greater auricular [C2,3]
auricular branch of [X]
lesser occipital [C2]

Also note the names of the parts of the ear

The block (from the OHEM)

Greater Auricular
- 1cm below ear lobe all the way from post border of SCM to angle of mandible
Lesser occipital
- infiltrate just behind the ear
Auriculotemporal
- just anterior to the EAM and tragus (watching out for the superficial temporal artery

Here’s a video from EMRAP with a further somewhat simplified method

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