Examlex
Which neuronal structure has the greatest density of voltage-gated Na+channels, resulting in the lowest threshold potential along a neuron?
Optic Nerve
Is a crucial part of the eye and visual system, transmitting visual information from the retina to the brain.
Adjustable Opening
A mechanism or feature that allows the size of an opening to be altered or adjusted as needed.
Pupil
The opening in the center of the iris of the eye, which adjusts in size to regulate the amount of light reaching the retina.
Upside-down Image
The phenomenon where images projected onto the retina are perceived as upright due to the brain's processing, despite being inverted.
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