Rod+Cells+-+AC

=Introduction= toc Have you ever been in a dark room and then someone opens the door, and ….. BAM! All the light hits you, this is a result of your rod cells getting very little light and then a lot of light, when you are in a dark your pupils open up wide and when there is a lot of light the pupils close up (1). Your rod cells work to get the smallest amount of light in a room, the structure has a lot to do with the way you see. There are lots of different things in your rods that make light visible, one thing is mitochondria which is what energy is, rod cells have lots of mitochondria (2). Some people have diseases that affect the eyes, one is Retinitis Pigmentosa,it affects the retina and all the light sensitive parts of your eyes. Overtime you loss your vision. =Function of a Rod Cell= The rod cells in your eyes have an important job, they turn light into electrical brain waves (“Eyes”) which is how your eyes see light. Then they are transmitted (travel) up your optic nerve and into your brain which is when your brain decodes the image(“Eyes”). Did you know when you see images, they get flipped upside down, but your brain flips it right side up for you because it knows that the world is not upside down (“Eyes”).

[[image:https://docs.google.com/a/wethersfield.me/drawings/d/sRrCUM97qzcTy0bsZcvae4A/image?w=696&h=234&rev=398&ac=1 width="716" height="258"]]
=Structure of a Rod Cell=

=What is a Disease That Affects Your Rod Cells?=

There are a lot of cells in our body, but they're not all the same. The cells in your skin are not the same as the cells in your blood or eyes. Rod cells are the the cells that see light, they're photoreceptive, which means they are sensitive to light (“eyes”) They also - just like other cells - can get diseases, one disease is Retinitis Pigmentosa. This disease affects the way you see. It is a rare condition only 1 in 4,000 people get it (ghr.nlm.gov). The disease breaks down the rod cells which causes vision loss. The rod cells pick up light waves so when something breaks them down then the light cant go into your eyes, so as a result you loss your vision.

=Conclusion=

=References=


 * 1) brainpop.com/health/bodysystem/eyes/
 * 2) Biology book by Miller 9780138030995
 * 3) Principle of anatomy and physiology 9780060466947
 * 4) discoveryeditaction.com/learn/videos/
 * 5) www.genome.gov
 * 6) ghr.nim.gov/condtion/retinites-pigmentosa#statistics
 * 7)  [|__https://en.wikipedia.org/wiki/Rod_cell__] ~ picture
 * 8) Book by padilla 9780132011471