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Nerves of the Orbit

Optic Nerve This nerve of vision is 4 cm long. About 1 million myelinated nerve fibres create it. It comes from the eyeball, 3 or 4 millimeters nasal to the posterior pole of the eyeball. It runs backwards and medially, it joins the optic chiasma when it

Supraorbital Nerve

The supraorbital nerve is one of the two ending branches of the frontal nerve. The supratrochlear and supraorbital nerves originate from the frontal branch and at the time of cutaneous surgery over the orbit are the ones at maximum risk of injury. Origin The supraorbital nerve emerges

Lingual Nerve

The lingual nerve is a sensory division belonging to the posterior branch of the mandibular division of the trigeminal nerve. Origin The lingual nerve arises via posterior division of the mandibular nerve and travels down in the middle of the ramus of the mandible as well as

Olfactory Nerve

  Olfactory Nerve is the only sensory and carries the sense of smell from nasal cavity. It is the 1st cranial nerve and is the shortest of all the pairs of cranial nerves. Unique Features The primary sensory neurons of olfactory nerve (olfactory neurons) go through constant turnover,

Supratrochlear Nerve

The supratrochlear nerve, among the two terminal branches of the frontal nerve, is the smaller one and flows anteriorly over the trochlea and tendon of the superior oblique muscle along with the supratrochlear artery. Origin The supratrochlear nerve emerges from fibers of the frontal nerve, the largest

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