We do not see the blood vessels and neurons that lie in front of the photoreceptors because
A) the visual system does not respond much to stimuli that never change.
B) these structures are made of special proteins whose fibers make them transparent.
C) they are blocked by the vitreous humor.
D) they lie behind the lens and cornea.

Question

Quizplus · Accepted Answer

The visual system is adapted to ignore stimuli that remain constant, allowing us to see without the interference of the blood vessels and neurons in front of the photoreceptors. This adaptation helps in focusing on changing visual information in our environment.

We Do Not See the Blood Vessels and Neurons That