Easy Question: SPI and ICSP

My question is pretty easy: what is the difference (on Arduino Uno) between the 6 ICSP pins (GND, VCC, MISO, MOSI, SCK, SS) and the SPI pins (digital I/O pins 11, 12, 13 and SS pin (normally pin 10)) ? Is there even a difference?

I need to know this to be sure if i can still use the digital pins even if the ICSP pins are connected to an external device.

The ICSP header does not exhibit "SS", but the reset pin.

The others are merely paralleled.

The_Programmer:
I need to know this to be sure if i can still use the digital pins even if the ICSP pins are connected to an external device.

Probably not.