Wireless Connectivity without wireless NIC

My current set up at home is using a Virgin Media Superhub and I have a few devices connected to this.
My spare PC is of a good spec, but does not have a wireless NIC card on board.
I have a spare NetGear Router (from Virgin).

My questions is as follows:
Is it possible to use the spare router directly connected to my PC to act in the same way as a wireless NIC card, and avoid having to buy a new one?

Any ideas / guidance will be really helpful...

Many thanks