NEET PG DENTAL EXAM

BRAIN

CRANIAL NERVES

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
carries impulses for vision
A
olfactory
B
optic
C
oculomotor
D
trochlear
E
trigeminal
Explanation: 

Detailed explanation-1: -The optic nerve transmits electrical impulses from your eyes to your brain. Your brain processes this sensory information so that you can see.

Detailed explanation-2: -The small photoreceptor cells of the retina (the inner surface at the back of the eye) sense light and transmit impulses to the optic nerve. The optic nerve from each eye carries impulses to the brain, where visual information is interpreted.

Detailed explanation-3: -The optic nerve directs the afferent limb of the reflex pathway. Light stimulates the retinal ganglionic cells. The impulses travel through the optic nerve (CN II), which projects bilaterally to the pretectal nucleus in the midbrain, and then projects to the Edinger-Westphal nucleus.

Detailed explanation-4: -Optic Nerve – carries the light impulses for sight from the retina to the brain. Retina – the most active area of the eye where the rods and cones are found. These receptors pick up the bits and pieces of the visual signals and transport them to the optic nerve for transmission to the brain.

There is 1 question to complete.