Exam IV-VisualSystem Flashcards
Which cell layer in the eyeball do the sclera and cornea reside?
1st layer
Which eyeball cell layer do the choroid, lens, and iris reside?
2nd layer
Which eyeball layer does the Retina reside?
3rd layer
What are the cell layers (beginning to end) for the flow of light?
Optic Nerve fibers->ganglion cells->amacrine cells->bipolar cells->horizontal cells->cones/rods->pigment epithelum
What section of the 2 eyes sees the LEFT visual field?
NasalRetina of L eye and Temporal Retina of R eye
Which retinal fibers cross at the chiasm?
the NasalRetinas cross at the chiasm
What two things organize cells of the visual cortex?
- Orientation 2. Color of stimuli
What information is provided by the Dorsal Stream? Whats another name for this stream?
Where the stimulus is, motion and spatial relation…Action Stream
What information is provided by the Ventral Stream? another name?
3d form and color…Perception stream
Which pathway plays a role in circadian rhythm and pupillary dilation?
Retino-HypoThalamic Pathway
Which pathway leads to orientation and guides eye movements?
Retino-Tectal Pathway
What is the pathway leading to the dorsal stream and the ventral stream?
Reticulo-Geniculo-Striate Pathway
What is the name for the pupillary constriction and pupillary dilation pathways?
Light reflex pathway
What is the new/key area apart of the pupillary constriction pathway?
Pre-Tectal Area
For distance focus, do the cilliary muscles contract or relax?
The cilliary muscles contract for distance focus
