i read about it somewhere.
2007-01-19 02:20:49 · 13 answers · asked by Rodney 1 in Science & Mathematics ➔ Chemistry
Actually, no one knows for certain. There are several theories as you can read above.
The theory of the time it takes is blatantly false though, because I can repeatedly and immediately crack my toes indefinitely.
2007-01-19 02:29:29 · answer #1 · answered by Captain Jack 6 · 1⤊ 1⤋
What's really happening when you "crack" your knuckles is that you are either pushing the joint back into or out of its normal position. Joints are the meeting points of two separate bones which are held together by connecting tissues and ligaments. A thick, clear lubricant (made mostly of carbon dioxide and some nitrogen) called synovial fluid is found between the bones. When you stretch or pull your finger to get that desired popping noise, you are causing the bones to pull apart. Pressure is reduced on the synovial fluid and bubbles form that quickly expand and then burst - which is why you get that noise.
2007-01-19 02:25:58 · answer #2 · answered by Anonymous · 1⤊ 1⤋
Yes, When you "crack" your knuckles, you are actually pushing the joint either back into or out of its normal position. In either case, when you do this, gas(es), primarily nitrogen, is displaced and escapes from the joint space. This displacement of gas causes the characteristic "popping" and "cracking" sound of knuckles, and a few other joints. Not all joint "popping" sounds are caused by escaping gases. In some joints, most notably the hip, the sound is made by ligaments moving over the bone.
2007-01-19 02:24:52 · answer #3 · answered by WillsBroncoGal 3 · 1⤊ 1⤋
No.
It's synovial fluid...which produces gas bubbles(a mixture of oxygen, nitrogen and carbon dioxide). The bubbles take 25-30 minutes to reform....which is why you sometimes can't pop again right away.
Studies have been done to determine whether or not popping your knuckles causes arthritis.
The scientific evidence is inconclusive.....although they have been able to link it to lower grip strength.
2007-01-19 02:22:42 · answer #4 · answered by Barrett G 6 · 2⤊ 0⤋
Actually it is called a bursa sack and it builds up with fluid to act as a kind of lubricant. when you crack your knuckles you relieve the pressure that has been built up which is why you hear a crack. But be warned conflicting studies have shown that it may lead to arthritis.
2007-01-19 02:25:25 · answer #5 · answered by paultarbox06477 2 · 1⤊ 1⤋
No it and air pocket between the bones that your air deflating.
2007-01-19 02:23:28 · answer #6 · answered by Eda M 3 · 0⤊ 0⤋
Nope, it is the sound of cartilage tearing.
2007-01-19 02:23:26 · answer #7 · answered by Anonymous · 0⤊ 1⤋
NO! it is your join going into place and releicving stress
2007-01-19 02:22:57 · answer #8 · answered by Anonymous · 0⤊ 1⤋
no its the shifting of joints that is the stupidest thing that i have ever heard
2007-01-19 02:24:14 · answer #9 · answered by A to the T 2 · 0⤊ 1⤋
no..its the sound of arthritis coming on in your old age if you dont stop it now...
2007-01-19 02:24:01 · answer #10 · answered by ozzy chik... 5 · 0⤊ 1⤋