QS Study

Nerve Supply of the Scalp

The occipital belly on every side is supplied by a posterior auricular branch of the facial nerve while the frontal abdomen is supplied by the temporal branch of the facial nerve.

Sensory supply:

The main trunks lie in the superficial fascia, moving laterally from the midline anteriorly, the following nerves are present.

(i) The supratrochlear nerve: Branch of the ophthalmic division of trigeminal nerve. This nerve supplies the scalp in the medial plane at the frontal region, up to the vertex.

(ii) The supraorbital nerve: Branch of the ophthalmic division of the trigeminal nerve. This nerve supplies the scalp at the front, lateral to the supratrochlear nerve distribution, up to the vertex.

(iii) The Zygomaticotemporal nerve: Branch of the maxillary division of trigeminal nerve. It supplies the scalp over the temple region

(iv) The auriculotemporal nerve: Branch of the mandibular division of the trigeminal nerve. It supplies the skin over the temporal region of the scalp.

(v) The lesser occipital nerve: Branch of the cervical plexus. It supplies the scalp over the lateral occipital region.

(vi) The greater occipital nerve: Posterior division of great auricular nerve. It supplies the scalp in the median plane at the occipital region, up to the vertex.

Nerve Supply of the Scalp 1

Fig – Nerve supply of scalp

Motor supply –

The scalp on every side of the midline is supplied by 2 motor nerves: 1 in front of the ear and 1 behind the ear; both these nerves are originated from the facial nerve. Nerve supporting the ear is the posterior auricular branch of the facial nerve.

  1. Temporal branch of facial nerve.
  2. Posterior auricular branch of facial nerve.
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