Manood ng libreng bidyo When You Crack Your Knuckles

(9.11 MB) idinagdag ng 19 Feb 2018 148 beses na nalaro Edukasyunal Tutorial How it works Health
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When You Crack Your Knuckles

flowplayer
00:00 00:00

spaceplay / pause

qunload | stop

ffullscreen

shift + ←→slower / faster

↑↓volume

mmute

←→seek

 . seek to previous

12… 6 seek to 10%, 20% … 60%

Paglalarawan ng animasyon:

Here's what happens to your knuckles when you crack them.