Cranial Nerves COPY Flashcards
1
Q
name the 12 cranial nerves
A
CN I Olfactory CN II Optic CN III Oculomotor CN IV Trochlear CN V Trigeminal CN VI Abducent CN VII Facial CN VIII Vestibulocochlear CN IX Glossopharyngeal CN X Vagus CN XI Accessory CN XII Hypoglossal
2
Q
function of olfactory
A
smell
3
Q
function of optic
A
sight
4
Q
function of oculomotor
A
motor to eye muscles – medial rectus, inferior oblique, superior rectus, inferior rectus
parasympathetic to ciliary + constrictor pupillae
5
Q
presentation of CN III palsy
A
eye is down + out
ptosis
fixed, dilated pupil
6
Q
function of trochlear
A
motor to superior oblique eye muscle
7
Q
presentation of CN IV palsy
A
defective downward gaze – vertical diplopia
8
Q
function of trigeminal
A
V1 + V2 - sensory supply to face
V3 - sensory + motor
9
Q
what muscles are supplies by CN V3
A
masseter temporalis medial pterygoid lateral pterygoid tensor veli palatini tensory tympani
10
Q
function of abducens
A
motor supply to lateral rectus
11
Q
presentation of CN VI palsy
A
defective abduction – horizontal diplopia
