A bit more info...
The Turn Indicator (and Turn Co-ordinator - Tinstaafl and Send Clowns have explained the difference) are normally electrically driven in the average light aircraft whereas the other gyros (DI and AI) are vacuum driven. The rotation speed of the TI or TC is, I understand, much higher than the DI and AI and because the former pair have only one degree of freedom, they won't topple. In a loss of control in IMC, the TI or TC is what you should rely on.
I'm assuming you are not inverted at this point. The check that you're not inverted should of course be your first action in the event of loss of control in IMC. If you get this bit wrong, you're in real trouble.