When a single photon from a source of light hits the retina in the eye, it triggers a signal that travels along the optic nerve to the occipital lobe of the brain.
The interaction of a photon with the photoreceptors in the retina first causes the movement of sodium ions into a sensory neuron. What happens after the movement of sodium ions?
Select one:
a. Sodium ions move into an interneuron.
b. Potassium ions move into an interneuron.
c. Potassium ions move out of a sensory neuron.
d. Sodium ions move out of a sensory neuron.
Answers: 2
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When a single photon from a source of light hits the retina in the eye, it triggers a signal that tr...
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