how does this work

[gnarlyocelot]

How does the pupil of the eye expand without stretching or crunching the Iris? It would have to overlap the iris, but as we all know, thats not the case. My iris has a tawny explosion, erupting inside an emerald atmosphere of sexy.. and when my pupil expands, its not like that picture gets crunched.. instead, the explosion is completely covered up

Comments

MY amazingly sexy iris

[choir_nerd04]

wait wait blake... i did an extensive report on the eye last year... so i should know this!!!!!! what exactly do u mean crush? and how long is that kiss?!

Re: MY amazingly sexy iris

[gnarlyocelot]

LOL.

crush = contract..

like a balloon with a picture of a pumpkin on it... expanding makes it bigger, contracting makes it smaller.

Re: MY amazingly sexy iris

[choir_nerd04]

information never goes to the iris. and the iris never processes it. the iris is connective tissue. the light goes thru the pupil to the lens then to the back of the eye where the retina is. hits the rods and cones. they make the light info into chemical info. sent to the brain thru the optic nerve. to the occipital lobe of the brain. to the primary visual cortex where different parts of the picture are interpreted. HOW IS THIS CONFUSING!??!

Re: MY amazingly sexy iris

[buhay_elmo]

Hey Allison,

Dude, who's the hot guy holding you?!?!?!? I'd sure love for him to wrap his manly arms around me. Purrrrrr

psh i am all over this...

[turtlepowerchk]

...because i love the incentive (by and by pdf's answer doesn't count because he is guy plus my answer is way better). anywho a pupil constricts or expands according to the amount of light avaiable. in bright light, the pupil constricts to lessen the amount of light entering in the eye, so it is not damaged. in darker areas, it is harder to see due to the lack of light so the pupil embiggens, allowing more light to hit the fovea. anywho i digress, i just wanted to stick fovea in there somehow. a pupil changes size do to the muscles controlling the iris. if the iris muscles relax, the pupil (which is just a hole) is made smaller. if the iris muscles contrict, the pupil is enlargened.ta dah. where is my reward?

Re: psh i am all over this...

[turtlepowerchk]

teehehe. oh where oh where would i be without the simpsons?

Re: psh i am all over this...

[choir_nerd04]

your explanation is flawed... plz refer to my live journal entry for a full and CORRECT explanation of the eye and how it works.

the fovea does not receive light either... the lens does. the fovea centralis is its technical name b/c its in the dead center of the macula. the fovea is a place on the BACK of the eye that has only cones and therefore is responsible for fine detail.

AND the pupil is a hole but it doesnt get bigger or smaller. the pupil is one size and always will be no matter how much or how little light there is. The IRIS changes size and covers the pupil or uncovers it to let light in.

by the way, who is this?!

[gnarlyocelot]

haha, i've decided to stare into my mirror, and turn the lights on and off... causing the iris to contract and expand over and over again. If my theory holds true, and the iris works like any other muscle.. my eyes are going to be freaking ripped! watch out ladiez!

[brujah8]

Blake

[buhay_elmo]

Dang Dylan. I never knew one human being could be so wrong!!! DOn't listen to him Blake, he has no clue what he's talking about. :)

[brujah8]

you're joking, right?

[buhay_elmo]

LMAO Yes, I was joking! I felt like I needed to throw my 2 cents in this disscussion. I just felt like my 2 cents should be silly.

[brujah8]

OK, now that josh's comment has gotten me paranoid about my answer, i'm going to cover my bases; no, your eye isn't made of several triangular pieces, like the door in my above example; however, the expansion/contraction is similar enough to that of the eye to make it a legitimate point of reference.

[gnarlyocelot]

hehe, wow, even dylan doesnt understand my question.

When i say picture, i dont mean what i "see", i mean the picture i described prior to saying "the picture" which was "a tawny brown explosion in the middle of an emerald atmosphere of sexy" and of course ze black pupil in the very middle. Think of it as rings.. the first is green, the second is brown, and the center is black. Now when the Black expands.. .you would expect the green and brown rings to still be there only shrunken.. INSTEAD the brown is completely covered up. But how can a hole cover something up?

[choir_nerd04]

blake....we're not done talking about this! u left to go to work when i was trying to help u!! i understand what ur saying. and i might not have a definate explantion but i do know that the pupil does not cover ur brown. my best guess, like i said, is that when the muscle pulls on the iris, the brown-colored connective tissue pulls tighter and therefore goes under the green. nothing disappears. matter cannot be destroyed. so if u want to continue or convo and NOT leave in the middle of it, i.m. me

[buhay_elmo]

WHOA WHOA WHOA! Hold on just one second missy!!!! BLAKE HAS A JOB?!?!?!?!?! I thought his only job was to just sit around the computer/gamecube/xbox and be a bum.