Question #376

Considering innervation of the scalp, which of the following statements is correct?

The zygomaticotemporal nerve is a branch of V3

There are six main sensory nerves

The auriculotemporal nerve is a branch of the C2 posterior rami

The lesser occipital nerve passes through the hypoglossal canal

All sensory nerves are branches of the trigeminal nerve

The nerves of the scalp are (from anterior to posterior):

1. Supratrochlear
2. Supraorbital
3. Zygomaticotemporal
4. Auriculotemporal
5. Lesser occipital
6. Greater occipital

They are all branches of the trigeminal nerve (V1, V1, V2, V3 from anterior), except the lesser and greater occipital nerves which take origin from the posterior rami of the C2 nerve root.

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