1. Explain the 'Dark Current' in the photoreceptor cells. 2. Where does the lens focus the image on the retina? What is

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1 Explain The Dark Current In The Photoreceptor Cells 2 Where Does The Lens Focus The Image On The Retina What Is 1 (28.41 KiB) Viewed 29 times

1. Explain the 'Dark Current' in the photoreceptor cells. 2. Where does the lens focus the image on the retina? What is the term for images that are focused in front of or behind the retina and how are they corrected? 3. What is odd about the arrangement of the layers of the retina? 4. What is the fovea and what type of photoreceptors are most abundant there? 5. Why/how do bipolar cells respond differently to the same neurotransmitter released by the photoreceptors? How does it change the response in the ganglion cells in the presence and absence of light?