Exam (elaborations)
Chapter 9 The Eye
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Exam of 7 pages for the course Neuroscience at Stanford University (Chapter 9 The Eye)
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Chapter Nine The Eye1. What is absorption? Choose the correct option.
A) The bouncing of light rays off a surface
B) The bending of light rays from one transparent medium to another
C) The transfer of light energy to a particle or surface
D) The bouncing of light rays from one transparent medium to another
2. Why there is no sensation of light at the optic disk? Choose the correct option.
A) Because the optic disk is a theoretical construct
B) Because there are no photoreceptors in the optic disk
C) Because optic nerve fibers exit the retina at this point
D) Because of the presence of the vitreous humor
3. How is the aqueous humor different from the vitreous humor? Choose the correct
option.
A) Aqueous humor is a viscous jelly-like fluid, whereas the vitreous humor is a thin
watery fluid.
B) Aqueous humor lies behind the cornea, whereas the vitreous humor lies between
the lens and the retina.
C) The aqueous humor serves to keep the eyeball spherical, whereas the vitreous
humor helps in nourishing the cornea.
D) The pigmentation of aqueous humor provides the eye's color, whereas the vitreous
humor has no pigment.
4. If the cornea has a refractive power of about 42 diopters, at what distance behind the
corneal surface will parallel light rays be focused on the retina? Choose the correct
option.
A) 0.024 m
B) 2.4mm
C) 0.024 cm
D) 0.24 cm
5. Which layer in the retina contains the cell bodies of the bipolar cells, horizontal cells,
and amacrine cells? Choose the correct option.
A) Outer nuclear layer
B) Ganglion cell layer
C) Inner nuclear layer
D) Photoreceptor outer segment layer
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