Which of the following pa of optic nerve is longest?
Correct Answer: Intraorbital
Description: Intra-orbital is the longest pa of optic nerve. Cranial Nerve Optic nerve arises from ganglion cell axons. Length = 50 mm. (40 mm in few texts) Can be considered as pa of brain 2nd order neuron Pas: Intraocular(1), Intraorbital(2), Intracanalicular(3), Intracranial(4). Smallest pa of optic nerve is Intraocular Longest pa : Intraorbital.
Category:
Ophthalmology
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