The trigeminal ganglion gives off three branches. One of them is the ophthalmic
nerve, which again splits into three branches: the lacrimal, the frontal, and the nasociliary
nerves. The other two branches are the maxillary and mandibular nerves. In this chapter the
authors discuss all the branches of these nerves as well as the nerves of the cervical plexus.
The innervation of the skin of the head, the eye, nose, mouth, teeth, tongue, ear and larynx
are discussed in detail. Finally the authors outline the sonoanatomy of infraorbital and
greater occipital nerves, the superficial cervical plexus and that of the eye and orbit.
Keywords: Cutaneous innervation, External nasal nerve, Facial muscles, Fifth
cranial nerve, Greater auricular nerve, Greater occipital nerve, Infratrochlear
nerve, Innervation of the teeth, Laryngeal nerve, Larynx, Lingual nerve,
Mandibular division, Mandibular nerve, Maxillary division, Ophthalmic division,
Optic nerve, Orbit, Sonoanatomy, Superior trochlear nerve, Supraorbital nerve,
Tongue, Trigeminal ganglion, Trigeminal nerve, Vestibular sulcus, Zygomatic
facial nerve, Zygomatic temporal nerve.
