CO Anatomy & Physiology of the Visual System 2

Question 1

Which structure in the visual pathway serves as the primary relay station between the retina and the visual cortex?

Accepted Answer

Lateral geniculate nucleus (LGN)

Answer

Superior colliculus

Answer

Pretectal nucleus

Answer

Pulvinar nucleus

Question 2

The pupillary light reflex afferent pathway travels via which structure before reaching the pretectal nucleus?

Accepted Answer

Optic nerve and optic tract

Answer

Lateral geniculate nucleus

Answer

Superior colliculus

Answer

Optic radiations

Question 3

The superior oblique muscle intorts and depresses the eye in which position of gaze?

Accepted Answer

Adduction

Answer

Primary position

Answer

Abduction

Answer

Elevation

Question 4

The vestibulo-ocular reflex (VOR) functions primarily to maintain what?

Accepted Answer

Stable retinal images during head movement

Answer

Binocular fusion during near work

Answer

Accurate smooth pursuit eye movements

Answer

Correct vergence alignment

Question 5

Optic radiations carrying superior visual field information travel through which anatomical region?

Accepted Answer

Meyer's loop in the temporal lobe

Answer

Parietal white matter

Answer

Internal capsule posterior limb only

Answer

Corpus callosum

Question 6

Which of the following best describes the function of the superior cervical ganglion in ocular physiology?

Accepted Answer

Sympathetic innervation to the dilator pupillae and Müller's muscle

Answer

Parasympathetic innervation to the ciliary muscle

Answer

Motor innervation to the orbicularis oculi

Answer

Sensory innervation to the cornea

Question 7

In the context of retinal correspondence, what is the horopter?

Accepted Answer

The locus of points in space that stimulate corresponding retinal points

Answer

The angle between the two visual axes

Answer

The region of binocular single vision around the fixation point

Answer

The area of the retina with maximum cone density