{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

04 -- 402_S2009_Vision Homework

04 -- 402_S2009_Vision Homework - Nikhil Patel Psych 402...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
Nikhil Patel Psych 402 -- 001 1. The retina is really composed of several layers of neural cells.  The photoreceptors are   in the very back of the eye.  Why might some say this is an “odd” design?  And why is  the retina designed this way? Light must travel through the first few layers of cells to stimulate the photoreceptors;  however this works because the epithelial in which the photoreceptors are embedded aid their  metabolism. 2. Why does the arrangement of the retinal cells not impede acuity? The ganglia, horizontal, acrimal, and bipolar cells are not very dense, unmyelinated, and  are transparent. 3. At what point (photoreceptors? bipolar neurons? ganglion cells?) are action potentials  possible? Action potentials first occur at the ganglion cells. 4. What’s the difference between ciliary muscles and extraocular muscles?
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}