The blind spot
A) is the point on the retina at which the optic nerve leaves and blood vessels pass through
B) contains special photoreceptors that make only melanospin, which is not used for vision
C) is in the exact center of the retina
D) exhibits all of the above
E) exhibits only a and c
Correct Answer:
Verified
Q28: The fovea
A)is located in the exact center
Q29: Select the incorrect statement about slow pain.
A)It
Q30: Natural analgesia occurs when
A)endogenous opiates bind to
Q31: Which of the following structures normally controls
Q32: In hyperopia,
A)the eyeball is too short or
Q34: During accommodation for near vision,
A)the ciliary muscle
Q35: The lens of the eye
A)has convex surfaces
B)is
Q36: The circular muscle of the iris
A)contracts in
Q37: How is glutamate important to pain pathways?
A)Binds
Q38: The choroid
A)contains rods and cones
B)is a fluid
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