Acuity is greatest at the center of the fovea because:
A) the number of cones is great and each photoreceptor gets its own ganglion cell
B) the number of rods is great and each photoreceptor gets its own ganglion cell
C) the number of cones is great and more photoreceptors are connected to each ganglion cell
D) the number of rods is great and more photoreceptors are connected to each ganglion cell

Question

Quizplus · Accepted Answer

The fovea is the center of the retina and contains only cones that are responsible for color vision and visual acuity. Each cone in the fovea has its own ganglion cell, which means that the visual signal from each cone is transmitted to the brain without any convergence or loss of information. This results in the highest visual acuity at the center of the fovea. Therefore, option A is the best choice as it correctly states that the number of cones is great and each photoreceptor gets its own ganglion cell in the center of the fovea.

Acuity Is Greatest at the Center of the Fovea Because