trigeminal roots • Vascular decompression
Idiopathic facial paralysis
• idiopathic facial paralysis is also called facial neuritis or Bell palsy, which is peripheral facial paralysis due to the non special inflammation of facial nerve.
• Mutiple mononeuropathy: more than one peripheral nerve are involved
• Polyneuropathy: symmetrical weakness of limbs and areflexia, symmetric loss of sensory, autonomic dysfunction in the affected area
– Not include the optic nerves and olfactory bulbs
– Composed of Cranial nerves (10 pairs) and Spinal nerves (31 pairs)
• Myelinated fibers: coated with the membrane of one Schwann cell every 250 to 1000μm in concentric way, forming the insulated myelin (a multilayer sheath). Each segment is called node of Ranvier, permitting the conduction of the nerve impulse saltatory and therefore rapidly
