Erb's Point SCM — FRCA Primary MCQ
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Correct answer: D — The posterior border of SCM at the junction of its upper and middle thirds
Erb's point is located at the posterior border of sternocleidomastoid at the junction of its upper two-thirds and lower one-third (approximately at the level of C6). The four superficial branches of the cervical plexus emerge here: lesser occipital / great auricular / transverse cervical / and supraclavicular nerves. Superficial cervical plexus block is performed by infiltrating at this point.
Reference: RCoA 2021 Primary FRCA Curriculum