Flashcards in Exam IV-VisualSystem Deck (18):
Which cell layer in the eyeball do the sclera and cornea reside?
Which eyeball cell layer do the choroid, lens, and iris reside?
Which eyeball layer does the Retina reside?
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?
1. 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?
Which pathway leads to orientation and guides eye movements?
What is the pathway leading to the dorsal stream and the ventral stream?
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?
For distance focus, do the cilliary muscles contract or relax?
The cilliary muscles contract for distance focus
What would be the result of lesions to the temporal lobe?
contralateral homonymous superior quadrantopia HAHA
What causes down and out eye?