Step I which CN?

[purplelife]

is responsible for turning eye downward and laterally? Is it trochlear or oculomotor?

 

[GrabSlamBoot]

I thought the eye turning down and out was due to superior oblique damage so CN 4 trochlear

 

[purplelife]

I thought the eye turning down and out was due to superior oblique damage so CN 4 trochlear

I thought if CN 4 -SO- gets lesioned then you get eye turning up not down and out? lol.. If it's down and out that would be CN 3? I don't know if this is right. I'm getting more confused now.

 

[Missorleans]

I thought if CN 4 -SO- gets lesioned then you get eye turning up not down and out? lol.. If it's down and out that would be CN 3? I don't know if this is right. I'm getting more confused now.

If CN 3 gets damaged then the eye goes down an out because the only one still working is SO, CN 4.

 

[syma]

If CN 3 gets damaged then the eye goes down an out because the only one still working is SO, CN 4.

And CN6

 

[syma]

CN4 injury leaves them with a hypertropia and externally rotated eye.

Can present with a head tilt contra lateral to affected side. (And chin tilt)

 

[GrabSlamBoot]

Oops sorry. It would be an occulomotor nerve palsy