The fibular nerve, also known as the peroneal nerve, plays a crucial role in the functioning of the lower extremities. As one of the two major branches of the sciatic nerve, it innervates the muscles and skin of the lower leg and foot. The term "fibular nerve" is frequently used in medical contexts to describe this vital nerve's anatomy and physiological significance. However, it is worth noting that "fibular nerve" is a synonym for "peroneal nerve". These terms can be used interchangeably to refer to the same nerve, emphasizing the vital role it plays in motor and sensory functions of the lower limb.