The supratrochlear nerve is a branch of the ophthalmic division of the trigeminal nerve. This nerve supplies the scalp in the medial plane at the frontal region up to the vertex. The supraorbital nerve is also a 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. The zygomaticotemporal nerve is a branch of the maxillary division of the trigeminal nerve and supplies the scalp over the temple region. The auriculotemporal nerve is a branch of the mandibular division of the trigeminal nerve and supplies the skin over the temporal region of the scalp. The lesser occipital nerve is a branch of the cervical plexus (C2), which supplies the scalp over the lateral occipital region. The greater occipital nerve is a branch of the posterior ramus of the second cervical nerve. This nerve supplies the scalp in the median plane at the occipital region up to the vertex.