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12 Cards in this Set
- Front
- Back
The Various Human Senses |
Vision, hearing, touch, taste, smell, balance (vestibular sense),limb position and movement, temperature, and pain. |
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Receptors |
Specialized structures that respond to a physical stimulus by producing electrical changes that can initiate neural impulses. |
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Sensory Neurons |
Carry neural impulses from the receptor to the central nervous system. |
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Sensory Areas |
Sensory Neurons and Pathways lead to specific sensory areas in the cortex. |
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Transduction |
The conversion of energy from a physical stimulus to neural responses.
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Coding |
Representation of the Stimulus in the pattern of action potentials. |
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Quantity |
A stronger stimulus=>larger electrical charges in the receptors=>faster rates of action potentials in sensory neurons. |
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Quality |
Different receptors are tuned to respond to different forms of energy. "Specific nerve energies." |
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Cornea and Lens |
focus image onto back of eye, where the sensitive cells of the retina respond to light. |
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Retinal ganglion cells |
Send messages out of the optic nerve to the thalamus |
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fovea |
Area of retina where the receptor cells are especially densely packed.
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Blind Spot |
Where the optical nerve leaves the eye, there is no room for receptors.
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