Cranial nerves Flashcards
How many cranial nerves are there?
12 pairs
What do parasympathetic nerves innervate?
Glands, smooth muscle
Is there any sympathetic outflow from the skull?
No
What nerve fibres are present in olfactory nerve?
Special sensory
What nerve fibres are present in optic nerve?
Special sensory
What nerve fibres are present in oculomotor nerve?
Motor
Parasympathetic
What nerve fibres are present in trochlear nerve?
Motor
What nerve fibres are present in trigeminal nerve?
Motor
Sensory
What nerve fibres are present in abducens nerve?
Motor
What nerve fibres are present in facial nerve?
Motor
Sensory
Parasympathic
What nerve fibres are present in vestibulocochlear nerve?
Special sensory
What nerve fibres are present in glossopharyngeal nerve?
Sensory
Motor
Parasympathetic
What nerve fibres are present in vagus nerve?
Sensory
Motor
Parasympathetic
What nerve fibres are present in spinal accessory nerve?
Motor
What nerve fibres are present in hypoglossal nerve?
Motor
Where does the olfactory nerve fibres pass through the skull?
Cribiform plate of ethmoid
What is the name for lost sense of smell?
Anosmia
An increase in ICP can result in which eye condition?
Papillodema
A lesion at the optic chiasm will result in what type of visual field loss?
Bitemporal hemianopsia
A lesion at the right optic tract will result in what type of visual field loss?
left homonymous hemianopsia
Which foramen does the optic nerve pass through?
Optic foramen
Where do the retinal nerve fibres synapse?
Lateral geniculate body
Where does the oculomotor nerve originate?
Midbrain
Where does the oculomotor emerge from the skull?
Superior orbital fissure