Podcast
Questions and Answers
Which of these cell types is located closest to the pigment epithelium?
Which of these cell types is located closest to the pigment epithelium?
- Bipolar cells
- Rods and cones (correct)
- Optic nerve
- Ganglion cells
What is the correct order of cell layers in the retina through which light travels, from outermost to innermost?
What is the correct order of cell layers in the retina through which light travels, from outermost to innermost?
- Bipolar cells, ganglion cells, rods and cones, pigment epithelium
- Rods and cones, bipolar cells, ganglion cells, pigment epithelium
- Pigment epithelium, ganglion cells, bipolar cells, rods and cones
- Pigment epithelium, rods and cones, bipolar cells, ganglion cells (correct)
Which of these statements is TRUE about the relationship between light and photoreceptor cells?
Which of these statements is TRUE about the relationship between light and photoreceptor cells?
- Photoreceptor cells are most sensitive to light when completely dark.
- Photoreceptor cells release neurotransmitters when exposed to light. (correct)
- Photoreceptor cells are activated by the absence of light.
- Photoreceptor cells become more sensitive to light in bright conditions.
Which of these options is NOT a component of the retina?
Which of these options is NOT a component of the retina?
What happens to the information processed by ganglion cells before it reaches the brain?
What happens to the information processed by ganglion cells before it reaches the brain?
Flashcards
Photoreceptors
Photoreceptors
Light-sensitive cells in the retina that detect light.
Rods and Cones
Rods and Cones
Types of photoreceptors; rods detect low light, cones detect color.
Retina
Retina
Layer at the back of the eye containing photoreceptors.
Bipolar Cells
Bipolar Cells
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Optic Nerve
Optic Nerve
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Study Notes
Photoreceptor Structure and Function
- Photoreceptors are light-sensitive cells in the retina.
- They are arranged in layers.
- Light enters the retina through the pigment epithelium (outermost layer).
- Light then reaches rods and cones (photoreceptor cells).
- Light passes through layers of bipolar and ganglion cells.
- Optic nerve signals exit the eye.
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