Asked by Shane Bright on Apr 25, 2024
Verified
David has a problem with his vision. He sees very well but everything is black and white. The problem is most likely with what part of his eye?
A) the cornea
B) the cones
C) the lens
D) the fovea centralis
E) the retina
Cones
Photoreceptor cells in the retina that enable color vision and visual clarity in bright light.
Fovea Centralis
A small depression in the retina of the eye where visual acuity is highest, due to the concentration of cones, specialized for daylight vision, fine detail, and color.
Retina
The light-sensitive layer of tissue at the back of the inner eye that converts light into electrical signals sent to the brain, allowing for vision.
- Comprehend the structure and position of sensory receptors related to olfaction, tactile perception, gustation, auditory perception, and visual perception.
- Explain the prevalent vision issues and their underlying physiological principles.
Verified Answer
TM
Taylor Moore5 days ago
Final Answer :
B
Explanation :
Cones are responsible for color vision, and if they are not working properly, it can cause a person to see in black and white. The other parts listed (cornea, lens, fovea centralis, and retina) may impact vision, but they are not directly related to color vision.
Learning Objectives
- Comprehend the structure and position of sensory receptors related to olfaction, tactile perception, gustation, auditory perception, and visual perception.
- Explain the prevalent vision issues and their underlying physiological principles.