Final answer:
The tibial nerve innervates muscles and skin around the knee, including the posterior aspect of the leg and the sole of the foot. It is responsible for movement and sensation in these areas.
Step-by-step explanation:
The tibial nerve innervates several structures around the knee, including the muscles and skin on the posterior aspect of the leg. It supplies sensation to the sole of the foot and is responsible for the movement of the muscles involved in plantar flexion and inversion of the foot. The tibial nerve also innervates the muscles in the posterior compartment of the thigh, including the hamstrings.