Specifically, that silver wire is an *inductor* and needs to be modelled
as such.
Or you can model it as a length of transmission line. Below a
quarter-wavelength long, it will behave as an inductance, exactly like the
real wire does.
The thing I don't see specified on the schematic, is the proximity between
the wire and the ground plane. The amount of inductance depends not on its
length but on the loop area enclosed by the wire and its return path
(ground plane), so you would get totally different results for a PCB trace
as opposed to a wire suspended above the circuit board.
Andy