Not true regarding Optic Nerve
Correct Answer: Intracranial pa is the longest
Description: CRANIAL NERVE Optic nerve arises from ganglion cell axons. *Length = 47-50mm. *Can be considered as pa of brain *3rd order neuron *Protected by meninges *Pas: Intraocular, Intraorbital, intracanalicular, intracranial *Smallest pa of optic nerve is intraocular *Longest pa : Intraorbital Order of Neurons *Rods & Cones (Photoreceptors) *Bipolar Cells: 1st order Neuron *Ganglion Cells: 2nd order Neuron *Neurons that take impulse from LGB to Brain: 3rd order neuron
Category:
Ophthalmology
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