Sensory System Flashcards
Lens function
brings light into the eye
retina function
Detects light
Ciliary muscles function
control the size of the lens
Pupil function
middle of the eye that allows light to enter the eye
Cornea function
the transparent covering on the front of the eye that refracts light
Retina epithelium function
- supports photoreceptors
- contains melanin to absorb photons
optic nerve function
transmits visual information from the retina to the brain
Rod function
Detects intensity of light
Cone function
Detects color
Types of cones
Red, green, and blue
Ratio of rods: cones
16: 1
Retina horizontal cell function
laterally interconnecting neurons that help integrate and regulate the input from multiple photoreceptor cells
Amacrine function
responsible for the detection of directional motion and regulating adaption to light
Ganglion Cell Function
type of neuron that receives visual information from photoreceptors and transmits it to the optical nerve
two types of cells that send information to the Ganglion cells
- bipolar cells
- amacrine cells