Question
Impulses from photoreceptors are carried to the brain by ________.
Answer: Option B
:
B
The inner layer of the eye is the retina and it contains three layers of cells – from inside to outside – ganglion cells, bipolar cells and photoreceptor cells. There are 2 types ofphotoreceptorsin the retina: rods and cones. Photoreceptor cells contain light-sensitive proteins, photopigments. The rods are most sensitive to light and dark changes, shape and movement and contain only one type of light-sensitive pigment. The photopigments create an impulse when light falls on them. The optic nerveleaves the eyeand transmits impulses from the retina to the brain.
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:
B
The inner layer of the eye is the retina and it contains three layers of cells – from inside to outside – ganglion cells, bipolar cells and photoreceptor cells. There are 2 types ofphotoreceptorsin the retina: rods and cones. Photoreceptor cells contain light-sensitive proteins, photopigments. The rods are most sensitive to light and dark changes, shape and movement and contain only one type of light-sensitive pigment. The photopigments create an impulse when light falls on them. The optic nerveleaves the eyeand transmits impulses from the retina to the brain.
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