Normal Topic What exactly is SPINCHTER muscle? (Read 4837 times)
Paste Member Name in Quick Reply Box Thomas_Delacy
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What exactly is SPINCHTER muscle?
Jul 8th, 2006 at 7:18am
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is it squeezing ur buttocks?  HAs to do with your anal cavity?i donno? lol..
  

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Re: What exactly is SPINCHTER muscle?
Reply #1 - Jul 8th, 2006 at 8:38am
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From American Heritage Online Dictionary:

Sphincter:

>>A ringlike muscle that normally maintains constriction of a body passage or orifice and that relaxes as required by normal physiological functioning.<<

Basically, it's a round muscle that closes off an opening or hollow passage, within or on the outside of the body.  When no longer required, it relaxes and allows for full function of said opening or passage.

The two most-known sphincters are the anal (which is the countermeasure one, and the one you employ to hold back a BM or urine) and the vaginal.  There are others, though, including ones involving the heart, esophagus, and stomach.

And it's spelled sphincter... Smiley
  

I think polygraphers escaped among the evils of Pandora's box, which might have been an old analog polygraph... only God can tell whether you're lying or not, and He's got other things on His plate...
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Re: What exactly is SPINCHTER muscle?
Reply #2 - Jul 8th, 2006 at 9:25pm
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cesium_133 wrote on Jul 8th, 2006 at 8:38am:
From American Heritage Online Dictionary:

Sphincter:

>>A ringlike muscle that normally maintains constriction of a body passage or orifice and that relaxes as required by normal physiological functioning.<<

Basically, it's a round muscle that closes off an opening or hollow passage, within or on the outside of the body.  When no longer required, it relaxes and allows for full function of said opening or passage.

The two most-known sphincters are the anal (which is the countermeasure one, and the one you employ to hold back a BM or urine) and the vaginal.  There are others, though, including ones involving the heart, esophagus, and stomach.

And it's spelled sphincter... Smiley


I've often wondered about this one too.  So when you employ this countermeasure, you're supposed to act as if you're holding in a fart, or trying to expel a fart??
  
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Re: What exactly is SPINCHTER muscle?
Reply #3 - Jul 9th, 2006 at 2:50am
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my impression is that you squeeze as if you're "pinching the loaf off"
  
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Paste Member Name in Quick Reply Box retcopper
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Re: What exactly is SPINCHTER muscle?
Reply #4 - Jul 10th, 2006 at 2:41pm
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Woogie:

Just try to talk like cesium.
  
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Re: What exactly is SPINCHTER muscle?
Reply #5 - Jul 11th, 2006 at 5:36am
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Retcopper-

What do you mean talk like Cesium.  I tried to make it simple, alterego1 didn't seem to understand it.  Sorry if my explanation was too realistic for you.
  
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Re: What exactly is SPINCHTER muscle?
Reply #6 - Jul 11th, 2006 at 9:38am
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The muscular action you would want to employ would be the one used to hold back a fart Smiley  Happy, retcopper?

Going the other way, like you were trying to pass gas, might accomplish something similar, but it also involves constricting the diaphragm and making your breathing unnatural, producing an unacceptably weird tracing on that channel, and probably on the thoracic as well...
  

I think polygraphers escaped among the evils of Pandora's box, which might have been an old analog polygraph... only God can tell whether you're lying or not, and He's got other things on His plate...
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What exactly is SPINCHTER muscle?

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