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24 Cards in this Set
- Front
- Back
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2 layers of the retina
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pigmented layer - neural layer
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pigmented layer is the ____ layer of ____
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outer - retina
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dark pigment in pigmented layer prevents
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light from scattering
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neural layer is the ____ layer of ____
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inner - retina
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the photoreceptors are modified neurons called
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rods + cones
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3 layers of the neural layer
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photoreceptors - bipolar cells - ganglion cells
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the photoreceptors contains
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rods + cones
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rods & cones that are adjacent to the outer pigmented layer contain
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inner + outer segments
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the rods are more numerous than
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cones
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the rods are used in
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dim light
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the rods are used for
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peripheral vision
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the rods do not
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detect color
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the rods have an ____ & ____ segment
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outer - inner
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the outer segment is in what region
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receptor region
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the outer segment contains
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visual pigments
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the cones are less
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numerous than the rods
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the cones provide
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color vision
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the cones is used for ____ vision
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acute
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bipolar cells is located just inside the
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photoreceptor cell region
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bipolar cells pass a ____ from the receptor cells to the inner ganglion cells
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signal
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ganglion cells is the ____ retina layer
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innermost
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ganglion cells generate an ____ ____ in response to photoreceptor & bipolar cells
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action potential
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where does the action potential travel to from the ganglion cells
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optic nerve
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the optic nerve is composed of
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axons from ganglion cells
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