The fovea is the area of the retina:
A)where the optic nerve attaches to the retina, and that doesn't have any rods or cones.
B)where all blood vessels merge with the retina.
C)associated with high concentrations of cone cells, and that corresponds to the center of the visual field in most vertebrates.
D)that contains mostly rod cells, and explains why peripheral vision is limited at night.

Question

Quizplus · Accepted Answer

The fovea is associated with high concentrations of cone cells, and it corresponds to the center of the visual field in most vertebrates. This is why it is responsible for high acuity and color vision. Option A is incorrect because the area where the optic nerve attaches to the retina is called the optic disc or blind spot, and it doesn't have any photoreceptor cells. Option B is incorrect because blood vessels are spread throughout the retina and are not exclusive to the fovea. Option D is incorrect because the fovea contains mostly cone cells and is responsible for high acuity vision, while peripheral vision is mediated by rod cells.

The Fovea Is the Area of the Retina