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/sci/ - Science & Math


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[ERROR] No.1378695 [Reply] [Original]

Why doesn't the skin of your elbow hurt when you pinch it?

>> No.1378696

Mine hurts when I pinch it.

>> No.1378698

Dont think there are many nerves there.
You can shove a needle through it and still doesnt hurt.

>> No.1378727

youre not pinching hard enough

>> No.1378729

not as many nerve endings. they aren't necessary because it's not really vital to protect from an evolutionary point of view.

>> No.1378737

because you are an epic fag who likes penis in & around your mouth

>> No.1378741

it doesn't.

>> No.1378743

Does for me.

>> No.1378748

A lot of dead skin is there. You could sandpaper it down and you'd eventually get to the sensitive living skin. :)

>> No.1378752

the wenis.

>> No.1378764

It's a common impact point. How shitty would it be if every time you fell or had to crawl, your elbows and knees where aching joints of bitchpain?

>> No.1378771

it also doesn't hurt when you pinch scrotum skin, and foreskin.

>> No.1378773

>>1378727
this

>> No.1378776
File: 3 KB, 209x215, FUCKYOU.png [View same] [iqdb] [saucenao] [google]
[ERROR]

>>1378771
>>1378771
>mfw I tried this

>> No.1378781

I use a knife to cut off the dead skin on the bottom of my feet. Feels good, man.

>> No.1378786

people should get these things pierced

>> No.1378788

Probably has a lower nerve density than your back, and your back is pretty damn insensitive. I don't have my Anatomy textbooks handy at the moment, but I can make a few guesses:

1) Very few nociceptors of any kind, or

2) Mechanical nociceptors (which detect scrapes, tearing, cuts, pinches, pressure) as a reduced, maybe very reduced, level, and thermal and chemical nociceptors at some higher level (since it seems to me that burning/cold pains and sensations come through normally,) or

3) They're silent nociceptors -- they respond only to actual injury, that is, you won't get a pain single until you slam your elbow against something, or scrape it, or burning. Until the amount of pressure applied reaches a level that is damaging to the tissue, you don't get shit for pain.

>> No.1378793
File: 23 KB, 407x314, 1277547390308.jpg [View same] [iqdb] [saucenao] [google]
[ERROR]

>>1378786

>My face at the thought of skin piercings

>> No.1378795

Because god made us that way.

>> No.1378822

>>1378793

I've never had a piercing (I once stuck a safety pin through my ear lobe; my dad ripped it out and I never did that again), but I've had a lot of needles stuck in me (I was allergic to damn near everything as a kid and had to get shots,) so the thought of sharp pieces of metal pierce my flesh doesn't bother me (Rabies post-exposure was hilarious,) but I have no desire to get a piercing.

I think they look good on some people, but they're just... I dunno. I don't consider them taboo or exotic, so I guess they're not appealing/rebellious to me.

I want to get tattoos, however; My sclerae tattoo blue like a Fremen from Dune would be one, but that would cause so very many problems in everyday interaction (particularly in a Hospital, as a Doctor), that it'll never happen.

>> No.1378828 [DELETED] 

A never tunnel, called the cubital tunnel, is directly underneath it. This is your funny-bone.

>> No.1378842

>>1378822
scientists dont have tattoos.

>> No.1378844

>>1378842

do you think all scientists wear labcoats and glasses?

>> No.1378858

>>1378695
I dunno man, it hurts when I pinch it.

It also hurts really fucking bad whenever I not-so-roughly bump my elbow against something, like a desk. But yet it doesn't hurt so much when I get a really nasty gash in my abdomen.

>> No.1378903

>>1378822
tl;dr kewl story bro

>> No.1378923

>>1378858
You hit your funny bone.

>> No.1378932

>>1378844
Yes.

>> No.1378936

>>1378932

okay

>> No.1378956

Because humans naturally put their arms before the body when they fall, kids always get hurt in the elbow or the hands, so its better for elbows to not have as many nociceptors.

>> No.1379080

>>1378956

In that case you'd think it'd have more nociceptors, so that it hurts more, so that falling and injuring yourself are more strongly discouraged.