Anatomy of Auditory and Visual Pathways

Question 1

Central part of the cochlea is called ?

Answer 1

Modiolus

Question 2

In the modiolus, multiple spiral ganglia join to form the ______ ?

Answer 2

Cochlear nerve

Question 3

Scala vestibuli is vibrated. Which membrane is then vibrated ?

Answer 3

Reissner’s membrane

Question 4

Low frequency sound fibres pass through …

Answer 4

Anterolateral part of auditory cortex

Question 5

Which optic fibres cross at the optic chiasm?

Answer 5

Nasal fibres

The temporal fibres stay on the ipsilateral (same) side

Question 5

High frequency sound fibres pass through …

Answer 5

Posterolateral part of the auditory cortex

Question 6

Primary visual cortex is found in which lobe?

Answer 6

Occipital lobe

Question 7

Constriction of pupil upon which light is shown - reflex is named …

Answer 7

Direct light reflex

Question 8

Constriction of pupil of contralateral eye - when light is shown to the opposite eye - reflex is named ?

Answer 8

Indirect light reflex

Question 9

What is hemianopia?

Answer 9

Blindness for half the field of vision

Question 10

What is homonymous vision loss?

Answer 10

Vision lost in the SAME VISUAL FIELD in BOTH EYES

(e.g. temporal vision loss in both left and right eyes)

Question 11

What is heteronymous vision loss?

Answer 11

Vision lost in DIFFERENT visual fields in BOTH EYES

(e.g. temporal R and nasal L)