2008-12-29, 18:00 | Link #2341 |
Gregory House
IT Support
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Silly question time.
Did you ever get your arm numb while sleeping by involuntarily obstructing the blood flow? Well, I was wondering, since the other day I had some very traumatic 30 seconds or so when I realized I couldn't even feel my arm (it had "died" completely, it wouldn't even feel numb or anything. Didn't even feel like my own arm--of course, a couple of seconds later and the thing revived quite happily), how exactly does blood relate to "feeling" the arm? Aren't the nerves merely an extension of neuronal axons, whose originating cells are located in the spine? I understand how not getting any blood into my muscles would prevent them from moving, since that's where they get the oxygen they need in order to produce energy, but I don't understand how I can't even feel the arm.
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2008-12-29, 18:37 | Link #2343 |
カカシ
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The blood supply to a nerve probably got cut off. The blood vessels which supply the nerve run in the connective tissue that surround the axons. So, the blood vessels are actually in the nerve. When you compressed the nerve, the blood vessels are also compressed, and blood supply to the axons gets cut off.
Cutting off the blood supply to an area of the body is called ischemia. Ischemia is about the worst thing that can happen to a body part. Since that part recieves no new blood, it doesn't get oxygen, it doesn't get food (glucose) and it doesn't get its wastes (carbon dioxide, lactic acid, whatever) carried away. Nerves are particularly succeptible to ischemia because it takes a lot of metabolic energy to transmit nerve impulses. The reason that ischemia causes paraesthesia (what SF linked to) is that cutting off a nerve's blood supply changes the excitability of the nerve. First the nerve become superexcitable. But as the ischemia contines, the nerve becomes steadily less excitable, and after several minutes conduction of nerve impulses stops completely. Chances are if you wake up with an "dead" arm, that means the circulation has been cut off for at least 30 minutes. |
2008-12-30, 18:43 | Link #2345 |
Senior Member
Join Date: Nov 2003
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Why do people eat boogers? I can understand people picking boogers, because sneezing them out just doesn't work work sometimes.
But eating them? Are we still predisposed to bacterial instincts where we find eating other bacteria and dirty things still good for us? |
2008-12-30, 18:54 | Link #2346 | ||
(。☉౪ ⊙。)
Author
Join Date: Jul 2004
Location: In Maya world, where all is 3D and everything crashes
Age: 36
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and another thing, what is inside our nose already drains to our throat edit: here is something weird yet funny Quote:
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2009-01-02, 08:27 | Link #2347 |
~Blazing Red Eye~
Artist
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while i was watching movie, i feel something "bumpy" in my finger. The i look the bottom side of the chair and i saw many booger "dangling" here and there. When people finds no place to dispose their booger, they usually "put" them on nearby reachable places like the bottom side of a chair or table. Is it true that it tasty? i'll try it right away
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2009-01-02, 10:05 | Link #2348 | |
(。☉౪ ⊙。)
Author
Join Date: Jul 2004
Location: In Maya world, where all is 3D and everything crashes
Age: 36
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2009-01-02, 22:15 | Link #2350 | |
Senior Member
Join Date: Nov 2003
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someone should make a booger recipe for booger eating enthusiasts. |
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2009-01-04, 07:50 | Link #2352 |
Senior Member
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http://kayeirene.deviantart.com/
Try one of her themes, they oughta work. I have one of them, but I don't remember which >.<. Use StyleXP to apply. ( The program does not need to be ran on the backround for theme to work )
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2009-01-04, 18:26 | Link #2353 | |
Hige
Join Date: Aug 2007
Location: God only knows
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----- EDIT: mmmh, the vista theme cant be applied. When i add the theme with XP Syler, i even cant see it in the small box, where you can see the selected themes. What windows do you have? If you have the same as me, then i will recheck about the error. Cause for some reason, not every program is for XP 64 bit. >_< Thanks a lot.
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Last edited by Solafighter; 2009-01-04 at 18:51. |
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2009-01-05, 02:54 | Link #2354 |
♪♫ Maya Iincho ♩♬
Artist
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Well... this more of a health concern issue than a silly but i didn't want to create a whole thread to this question.
Our microwave is sorta old and it's flaking okay? So daddy decided to take it outside and clean it and "spray painted" the microwave. So the question came to me, how safe is it to microwave my oscar mayer weiners in there now? Okay... the hotdogs were just a funny example but really, how safe is it? It still has that spray paint smell which is horrendous, and it amplify when it's i microwave stuff in it, like hotdogs. First of all I have no idea what kind of spray paint he used, so I don't even know if it's safe. Currently it's been 3 or 4 days since then and i've been reluctant to use it but I have used it a few times. But how safe is it? without and kind of knowledge on what spray paint he used? ps: Oh shuddup, can't afford a new microwave atm >.<
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2009-01-05, 03:00 | Link #2355 | |
Incoherance is my friend!
Join Date: Dec 2005
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Quote:
Paint wise you want a enamel type something thats able to withstand the heat and moister of the microwave, I used rustoleum on mine.
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2009-01-05, 03:03 | Link #2356 | ||
AS Mods Sandbag
Join Date: Jan 2008
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You won't die fast or maybe when it goes KABOOOOOM. Quote:
Really, it can be dangerous if you are not 100% sure what you are doing. The worst case scenario = explosion. |
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2009-01-05, 03:10 | Link #2357 |
Incoherance is my friend!
Join Date: Dec 2005
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As long as you don't use latex/oil based paints it wont come off so easily, as for fumes and stuff....once its dry it should be realtivly safe...at last as safe letting microwaves dry..er...heat food...
If I can not brown it or lightly saute it I don't cook with it >> So the Mwave for me is used for reheating soem food and drinks....cook with it? what am I a barbarian?!?!?
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2009-01-05, 03:52 | Link #2358 | |
Just call me Ojisan
Join Date: Jan 2003
Location: U.K. Hampshire
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Quote:
I find it hard to believe he sprayed the inside so I would assume it was the outside. If so then there is no real issue health wise. Yes, there will be a paint smell for a while but as long as it wasn't some sort of lead based paint (which I suspect has been banned for a long time) then there shouldn't be a problem with the food if it's been 3 or 4 days since it was painted. |
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2009-01-05, 06:34 | Link #2359 |
(。☉౪ ⊙。)
Author
Join Date: Jul 2004
Location: In Maya world, where all is 3D and everything crashes
Age: 36
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Think of it as this, cause I've never heard of anyone spray painting the inside of a microwave (if that si what you mean)
Microwaves are never normally spray painted to begin with, there is a protection layer that goes over the paint (if it is even painted tbw) I wouldn't say that is is save to use it with paint inside because the radiation and heat can cause chemicals from the paint to evaporate and then affect your food |
2009-01-05, 07:01 | Link #2360 |
Senior Member
Join Date: Sep 2008
Location: Australia,Queensland
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Dono if this is the right place, and its most likely been asked(But im not the type of person to go over 120 pages...)
How much of my bandwidth does youtube steal per min/hour? I googled it but ended up with many diffrent answers >.< @ the microwave question, wat?-__- If spraypainted inside: Your dads an idiot, i wouldnt use it... If spraypainted outside: I would use it, but why would you spraypaint the microwave... |
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problem, q&a, serious |
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