Cranial Nerves Flashcards
Name and function of CN 1?
Olfactory nerve, sensory
Name and function of CN 2?
Optic nerve, sensory
Name and function of CN 3?
Oculomotor, motor
Name and function of CN 4?
Trochlear, motor
Name and function of CN 5?
Trigeminal, both
Name and function of CN 6?
Abducens, motor
Name and function of CN 7?
Facial, both
Name and function of CN 8?
Vestibular cochlear, sensory
Name and function of CN 9?
Glossopharyngeal, both
Name and function of CN 10?
Vagus, both
Name and function of CN 11?
Accessory, motor
Name and function of CN 12?
Hypoglossal, motor
Origin and exit of CN 1?
Origin- cerebrum, exit- cribiform plate
Origin and exit of CN 2?
Optic canal, visual cortex
Origin and exit of CN 3?
Origin: oculomotor nucleus and edinger westphal nucleus
Exit: superior orbital fissure
Origin and exit of CN 4?
Origin: midbrain on the posterior aspect
Exit: superior orbital fissure
Origin of CN 5?
Origin: anterior aspect of brainstem at the pontomedullary junction
Where does CNV1 exit?
Superior orbital fissure
Where does CNV2 exit?
Foramen rotundum via the infra orbital fissure
Origin and exit of CN 6?
Anterior aspect on brainstem
Superior orbital fissure
Origin and exit of CN 7?
Origin: pons (2 roots sensory and motor)
Exit: stylomastoid foramen
Origin and exit of CN 8?
Origin: pons and medulla
Exit: internal acoustic meatus
Origin and exit of CN 9?
Origin: medulla
Exit: jugular foramen
Origin and exit of CN10?
Origin: medulla
Exit: jugular foramen
Origin and exit of CN 11?
Origin: medulla and spine
Exit: jugular foramen
Origin and exit of CN 12?
Origin: medulla
Exit: hypoglossal canal
