W Hich of the Following Does NOT Describe Retinal Rod

Question

W hich of the following does NOT describe retinal rod cells?
A) They have a higher sensitivity than cones
B) They are used for dim light
C) They saturate in bright light
D) They have longer outer segments
E) They give rise to high visual acuity

Accepted Answer

Rod cells are not responsible for high visual acuity; this function is attributed to cone cells, which are densely packed in the fovea of the eye. Rod cells are more sensitive to light and are used for vision in low light conditions, but they do not provide the sharpness and detail that cone cells do.