Photoreceptors

Question 1

Photoreceptors

Answer 1

Light-sensitive neurons in the retina of the eye that produce action potentials when stimulated by light

Question 2

2 Types of Photoreceptor Cells

Answer 2

1. Rods (low light conditions like nighttime, black/white only)
2. Cones (bright light conditions like daytime; color vision)

Question 3

3 Types of Cone Cells Sensitive to Different Wavelengths of Light

Answer 3

1. Short-wavelength: most sensitive to different wavelengths of light
2. Medium-wavelength: most sensitive to green-ish light
3. Long-wavelength: most sensitive to red-ish light
   These send action potentials to opponent process cells - excitation and inhibition

Question 4

3 Types of Opponent Process Cells in the Visual System

Answer 4

1. Black/white: excited, you see white; inhibited, you see black
2. Red/green: excited, you see red; inhibited, you see green
3. Blue/yellow: excited, you see blue; inhibited, you see yellow