I don't know the parts of the motherboard.

What motherboard would you like to know the layout of? Although, many motherboards are different, most of them have the same basic parts. From back to front, you have the communication ports; (usually from top to bottom, varies by manufacturer)mouse/keyboard, usb 1.0/1.1/2.0(make and model dependant) serial, paralell, vga/monitor, then sound: midi, headphone/speaker out, line out, microphone in.
then on the board, processor, somewhere near it, cache, i/o chip, north bride chip, wich is responsable for memory(ram) access, ide(cd rom/ hard drive access) ports and power connector/s,
memory slots
then the south bridge chip witch controls isa port(old), pci slot, agp/pci-e slot (video card) along with the cmos battery, bios, and various other slots/connectors (such as fan, power button and so on) and chips, wich vary by manufacturer and model.

The front panel to the motherboard connections