pons

Question 1

what is a saccade?

Answer 1

d

Question 2

what are smooth pursuit movements?

Answer 2

v

Question 3

what is convergence?

Answer 3

f

Question 4

what is conjugate movements?

Answer 4

f

Question 5

what are vestibulo ocular movements?

Answer 5

h

Question 6

what are optokinetic movements?

Answer 6

n

Question 7

what happens if you’re eyes don’t move conjugately?

Answer 7

diploplia- eyes have to move both eyes together to keep picture in retina

Question 8

what is the nucleus prepositus hypoglossi?

Answer 8

control center for holding of your eyes on an object

Question 9

what is the corneal reflex?

Answer 9

touch the eye

spinal nucleus of 5 to cranial nerve 7 to close the eye – direct reflex

Question 10

what is the consensual reflex?

Answer 10

interneurons in spinal tract nucleus of 5 project to contralateral facial nucleus to close the opposite eye at the same time as the corneal reflex

Question 11

what does the tectospinal tract connect?

Answer 11

connects CN 4 and 5
superior oblique of 4 is a synergist is needed to
inferior rectus of oculomotor nerve in order to move the eyes down

inf oblique and superior rectus are also synergists needed in order to move the eyes up

Question 12

what does the paramedian RF control?

Answer 12

horizontal gaze

Question 13

what does the mesencephalic RF control?

Answer 13

vertical gaze

Question 14

1.5 syndrome

Answer 14

lesion of the L pons would take out abducens nucleus, MLF, and PPRF

when attempting to gaze R the R eye moves but the L eye does not

when attempting to gaze L neither eye moves

Question 15

what is internuclear opthalmoplesia?

Answer 15

bilateral lesion of MLF

Question 16

lesion in the cortex: where do they look?

Answer 16

look AWAY from hemiparesis

or towards the lesion

Question 17

lesion in the brainstem: where do they look?

Answer 17

look TOWARDS the hemiparesis

or away from the lesion