Multiple Choice
Which brain structure relays incoming sensory information to the appropriate areas of the cortex?
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13. The Peripheral Nervous System
Introduction to Sensory Receptors
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Which events occur during bright light adaptation in the human eye?
A
Dilation of the pupil and synthesis of rhodopsin
B
Contraction of the pupil and breakdown of rhodopsin
C
Dilation of the pupil and breakdown of rhodopsin
D
Contraction of the pupil and synthesis of rhodopsin
Verified step by step guidance1
Understand that bright light adaptation involves the eye adjusting to increased light levels to protect the retina and improve vision.
Recognize that the pupil, which controls the amount of light entering the eye, will contract in bright light to reduce light exposure.
Identify that rhodopsin, a light-sensitive receptor protein in the retina, breaks down in response to light exposure, a process known as photobleaching.
Eliminate options that mention dilation of the pupil, as this occurs in low light conditions to allow more light into the eye.
Conclude that during bright light adaptation, the correct events are the contraction of the pupil and the breakdown of rhodopsin.
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