2007-02-05 05:25:26 · 9 answers · asked by mr.coli1981 1 in Science & Mathematics ➔ Medicine
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.
2007-02-05 05:30:30 · answer #1 · answered by shadow10262000 3 · 0⤊ 0⤋
I asked this question yesterday lol. Apparently its nothing to do with cracking your bones. its the poping sound of the air sacks bursting in between the ligiments!
2007-02-05 05:28:28 · answer #2 · answered by Cap10kirk 3 · 0⤊ 0⤋
I was once told it was the fluid between the joints being forced about somehow??!!
2007-02-05 05:28:34 · answer #3 · answered by Manchoi 2 · 0⤊ 0⤋
some believe it's the sound of nitrogen being released from the joint.
2007-02-05 06:42:39 · answer #4 · answered by Joy K 4 · 0⤊ 0⤋
Tendons slidiing over the joint
2007-02-05 05:58:26 · answer #5 · answered by Anonymous · 0⤊ 0⤋
it has somehting to do with pockets of air / or the tendons snapping around suddenly.
2007-02-05 11:07:24 · answer #6 · answered by Nirmala 4 · 0⤊ 0⤋
yo joints man!
2007-02-05 12:16:20 · answer #7 · answered by luv_4_him♥ 1 · 0⤊ 0⤋
Cap10Kirk is pretty close to right.
2007-02-05 05:31:13 · answer #8 · answered by Jerry P 6 · 0⤊ 0⤋
your bone!duh
2007-02-05 05:30:07 · answer #9 · answered by Shaqira C 1 · 0⤊ 2⤋