Question

At the junction of and optic nerve, no vision is possible due to the absence of sensory cells. This is called

• A. iris
• B. retina
• C. blind spot
• D. pupil

Answer 1

Answer: (B), (C)

The correct options are
B retina
C blind spot

At the junction of the optic nerve and the retina, there are no sensory cells that could produce impulses when light falls on that location, so no vision is possible at that spot. This is called the blind spot.