Answer to Question #192925 in Human Anatomy and Physiology for Kay

Question

please select all correct options

In the eye

A) contraction of the ciliary muscles decreases the curvature of the lens.

B) lateral inhibition by horizontal cells increases visual contrast.

C) there are more cones in the fovea of the retina than there are rods.

D) the rods take less than three minutes to fully adapt to dim illumination.

E) visual acuity is best at the optic disc.

Answer 1

Correct answer is b and c

B) lateral inhibition by horizontal cells increases visual contrast.

C) there are more cones in the fovea of the retina than there are rods.

Option 'A' is incorrect because ciliary muscle contraction occurs during accommodation which increases lens curvature. 

Option 'D' is incorrect because rods require about 2 hours to reach their maximum intensity and have a slow response. 

Option 'E' is incorrect because the retina's fovea represents the best region of visual acuity.