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Author Topic: How sensitive are fingertips?  (Read 9676 times)

Offline DoctorBeaver

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How sensitive are fingertips?
« on: 01/06/2007 17:33:08 »
Well?  ???


 

paul.fr

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How sensitive are fingertips?
« Reply #1 on: 02/06/2007 16:02:01 »
Sensative to what, Doc? heat, pain...
 

Offline DoctorBeaver

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How sensitive are fingertips?
« Reply #2 on: 02/06/2007 16:35:42 »
I was thinking more along the lines of what is the smallest bump you could feel by running your fingers along an otherwise flat surface?
 

Offline Karen W.

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How sensitive are fingertips?
« Reply #3 on: 02/06/2007 16:53:24 »
Pretty sensitive.. I can feel pretty tiny bumps.. seems like you would have a lot of nerve endings in the ends of ones fingertips!
 

Offline iko

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How sensitive are fingertips?
« Reply #4 on: 02/06/2007 18:26:44 »
Hi fingertips fanatics!

Yes, fingertips are obviously very sensitive: a lot of sensors and nervous lines down there...
I knew a simple test for sensitivity.  Pinch the skin with two needles at the same time: first keep them very close to each other (1-2mm), then separate them gradually.
Without watching, of course, one should be able to recognize 'double sharps' when they are at 1-2mm on fingertips.  Much more (1-2cm) on the skin of your back.
Enjoy needle games

ikod
 

Offline Karen W.

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How sensitive are fingertips?
« Reply #5 on: 02/06/2007 19:25:37 »
Yuck... is that why they do the needle pricks on the back for allergies, because of the sensitivity??
 

Offline iko

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How sensitive are fingertips?
« Reply #6 on: 03/06/2007 09:22:17 »
Yuck... is that why they do the needle pricks on the back for allergies, because of the sensitivity??

I don't think so.
Probably they do it 'cause there is plenty of space back there and you cannot scratch it easily!  Furthermore you cannot see spots and things...
and worry about mysterious allergic reactions!

Funkod   ;D
 

Offline DoctorBeaver

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How sensitive are fingertips?
« Reply #7 on: 03/06/2007 14:54:08 »
Needle tests are normally done to check for nerve damage - mainly, I believe, after neck and/or head injuries. I had that done to me after I broke my neck.
 

Offline moonfire

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How sensitive are fingertips?
« Reply #8 on: 03/06/2007 16:08:33 »
Hmmm, should I or shouldn't I? LOL  Okay, Doc, I will leave you alone for a minute...

Karen, I had one of those tests done and asked my doc at the time...it was after that bit I told you in Activity4life forum.  they do it because it is a flat surface, room, but because your back is highly sensitive to those things that you are supposed to be allergic to the most...I am supposed to be allergic to certain trees...when I hike I never have a reaction to any that were probable to an allergy as I don't suffer from allergies.  I refuse to accept that sickness could be the problem too.  LOL
 

Offline Karen W.

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How sensitive are fingertips?
« Reply #9 on: 03/06/2007 17:05:47 »
Yuck... is that why they do the needle pricks on the back for allergies, because of the sensitivity??

I don't think so.
Probably they do it 'cause there is plenty of space back there and you cannot scratch it easily!  Furthermore you cannot see spots and things...
and worry about mysterious allergic reactions!

Funkod   ;D

Yeah that makes sense, If I saw what it looked like I might get scared.. I get scared easy!
 

Offline Karen W.

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How sensitive are fingertips?
« Reply #10 on: 03/06/2007 17:07:51 »
Hmmm, should I or shouldn't I? LOL  Okay, Doc, I will leave you alone for a minute...

Karen, I had one of those tests done and asked my doc at the time...it was after that bit I told you in Activity4life forum.  they do it because it is a flat surface, room, but because your back is highly sensitive to those things that you are supposed to be allergic to the most...I am supposed to be allergic to certain trees...when I hike I never have a reaction to any that were probable to an allergy as I don't suffer from allergies.  I refuse to accept that sickness could be the problem too.  LOL

You amaze me.. You have a good outlook on everything.. Give me some of that! LOL
 

Offline RD

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How sensitive are fingertips?
« Reply #11 on: 04/06/2007 16:18:13 »
I was thinking more along the lines of what is the smallest bump you could feel by running your fingers along an otherwise flat surface?

Presumably the "smallest bump" will be smaller than a Braille dot ...   

Quote
The nominal specifications for Braille dot, Braille cell and Braille page
dimensions are set by the National Library Service for the Blind and Physically
Handicapped (NLS).  The NLS certifies all Braille transcribers sponsored by the
Library of Congress based on these specifications:

      Braille dots:
             --    Height for paper Braille, 0.019 inches, uniform within tran-
                   scription;
             --    Base diameter, 0.057 inches;

      Braille cell:
             --    Center-to-center distance between dots, 0.092 inches;

http://www.nfbnet.org/files/rd_committee/BRAILLE.TXT
 

Offline Karen W.

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How sensitive are fingertips?
« Reply #12 on: 04/06/2007 16:28:03 »
Those are small but very detectable, I know for myself I can feel bumps of much smaller size!
 

Offline DoctorBeaver

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How sensitive are fingertips?
« Reply #13 on: 04/06/2007 16:33:49 »
Karen - I agree. Braille bumps feel like mountains compared to some unevenness I've felt. For instance, I was sanding a wall ready for painting & I could still feel the edge of the existing layer of paint even after a lot of sanding.
 

Offline Karen W.

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How sensitive are fingertips?
« Reply #14 on: 04/06/2007 16:54:18 »
Yes I have done the same in my refinishing jobs. I can feel things I cannot see, which amazes me alot!
« Last Edit: 04/06/2007 17:04:26 by Karen W. »
 

Offline DoctorBeaver

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How sensitive are fingertips?
« Reply #15 on: 04/06/2007 16:57:29 »
Refishing? Were you using the wrong bait the first time?  :D
 

Offline Karen W.

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How sensitive are fingertips?
« Reply #16 on: 04/06/2007 17:04:03 »
LOL thanks Doc.. HEE HEE.. I will correct that! LOL
 

Offline DoctorBeaver

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How sensitive are fingertips?
« Reply #17 on: 04/06/2007 17:05:50 »
PAH... now no-one will understand my joke  >:(
 

Offline Karen W.

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How sensitive are fingertips?
« Reply #18 on: 04/06/2007 17:23:42 »
LOL they will still understand it. LOL ! I sure am making lots of mistakes lately! Sorry about that!
 

Offline DoctorBeaver

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How sensitive are fingertips?
« Reply #19 on: 04/06/2007 18:00:58 »
Just to clarify the point... originally, Karen had put "refishing" instead of "refinishing".

There - I don't look so stupid now  ;D
 

Offline Karen W.

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How sensitive are fingertips?
« Reply #20 on: 04/06/2007 18:28:58 »
OK doc..LOL shall I go back and put it back into it's mistaken context??? LOL LOL ..Hee hee hee!
 

Offline iko

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How sensitive are fingertips?
« Reply #21 on: 04/06/2007 18:30:05 »
I just hate the word 'refishing'!

« Last Edit: 04/06/2007 18:33:15 by iko »
 

Offline Karen W.

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How sensitive are fingertips?
« Reply #22 on: 04/06/2007 18:34:50 »
LOL LOLLOL.. Is that like what sports fisherman do! LOL just fish for the heck throw them back and do it again..LOL..Poor fishies! I dislike sport fishing!
 

Offline kdlynn

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How sensitive are fingertips?
« Reply #23 on: 05/06/2007 01:44:09 »
maybe the fish think it's an extreme sport. like base diving or bungee jumping. ha ha
 

Offline Karen W.

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How sensitive are fingertips?
« Reply #24 on: 05/06/2007 15:01:52 »
LOL!!

well when your fingertips touch things that are hot etc. I think they are pretty sensitive also.. I can feel even the tiniest touch of something on my fingertips so I can't imagine that I would nessesarily have to see the item to feel it at the fingertips. Have you ever used that clear boxing tape you cut the piece off and it dissapears forever onto the roll of tape. I can no longer see it and thinking about it, thats when my touch is having to be super in order to detect the edge of that clear tepe. Sometimes it takes several passes to detct the edge with my fingertips!!
 

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How sensitive are fingertips?
« Reply #24 on: 05/06/2007 15:01:52 »

 

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