Flashcards in Cranial nerves Deck (114)
Loading flashcards...
1
How many cranial nerves are there?
12 pairs
2
What do parasympathetic nerves innervate?
Glands, smooth muscle
3
Is there any sympathetic outflow from the skull?
No
4
What nerve fibres are present in olfactory nerve?
Special sensory
5
What nerve fibres are present in optic nerve?
Special sensory
6
What nerve fibres are present in oculomotor nerve?
Motor
Parasympathetic
7
What nerve fibres are present in trochlear nerve?
Motor
8
What nerve fibres are present in trigeminal nerve?
Motor
Sensory
9
What nerve fibres are present in abducens nerve?
Motor
10
What nerve fibres are present in facial nerve?
Motor
Sensory
Parasympathic
11
What nerve fibres are present in vestibulocochlear nerve?
Special sensory
12
What nerve fibres are present in glossopharyngeal nerve?
Sensory
Motor
Parasympathetic
13
What nerve fibres are present in vagus nerve?
Sensory
Motor
Parasympathetic
14
What nerve fibres are present in spinal accessory nerve?
Motor
15
What nerve fibres are present in hypoglossal nerve?
Motor
16
Where does the olfactory nerve fibres pass through the skull?
Cribiform plate of ethmoid
17
What is the name for lost sense of smell?
Anosmia
18
An increase in ICP can result in which eye condition?
Papillodema
19
A lesion at the optic chiasm will result in what type of visual field loss?
Bitemporal hemianopsia
20
A lesion at the right optic tract will result in what type of visual field loss?
left homonymous hemianopsia
21
Which foramen does the optic nerve pass through?
Optic foramen
22
Where do the retinal nerve fibres synapse?
Lateral geniculate body
23
Where does the oculomotor nerve originate?
Midbrain
24
Where does the oculomotor emerge from the skull?
Superior orbital fissure
25
What does the oculomotor supply in the eye?
Extraocular muscles & eyelid
Constricts pupil (circular muscles) & accommodates lens (ciliary muscle)
26
If the oculomotor is lesioned, what will be observed?
Ptosis (eyelid drooping)
Eyeball abducted and pointing down
No pupillary reflex
No accommodation
27
Where does the trochlear nerve exit the skull?
Superior orbital fissure
28
What does the trochlear nerve supply?
Superior oblique (turns eye down)
29
What happens is the trochlear nerve is lesioned?
Diplopia (On looking down)
30
