If you hit your thumb with a hammer, these wires in your arm -- that, of course, we call nerves -- transmit the information into the junction box in the spinal cord where new wires, new nerves, take the information up to the brain where you become consciously aware that your thumb is now hurt.
Jika Anda memukul jempol Anda dengan palu, kabel di lengan Anda -- itu, tentu saja, kita sebut saraf -- mengirimkan informasi ke kotak sambungan di saraf tulang belakang di mana kabel baru, saraf baru, membawa informasi itu sampai di otak sehingga Anda menjadi sadar bahwa jempol Anda sakit.