Which nerve is described as supplying half of the skin area and muscle of the hind leg?

Which nerve is described as supplying half of the skin area and muscle of the hind leg?

• A. Sciatic Nerve
• B. Femoral Nerve
• C. Obturator Nerve
• D. Saphenous Nerve

Answer: (A)

The big-picture idea is that the hind limb is innervated by several nerves, with the sciatic nerve serving as the main driver for most of the limb’s muscles and a large portion of its skin. The sciatic nerve runs down the caudal thigh and then divides into tibial and common peroneal branches that supply nearly all the muscles of the leg and many of the muscles of the foot, as well as a substantial area of skin on the leg and paw. Because of this extensive motor and sensory territory, it’s often described as supplying roughly half of the skin area and muscle of the hind leg. The other nerves—femoral (which mainly handles cranial thigh muscles and contributes to medial leg sensation via the saphenous branch) and obturator (medial thigh muscles)—cover the remaining regions. Thus, the sciatic nerve fits the description as supplying half of the hind leg’s skin and muscles.

The big-picture idea is that the hind limb is innervated by several nerves, with the sciatic nerve serving as the main driver for most of the limb’s muscles and a large portion of its skin. The sciatic nerve runs down the caudal thigh and then divides into tibial and common peroneal branches that supply nearly all the muscles of the leg and many of the muscles of the foot, as well as a substantial area of skin on the leg and paw. Because of this extensive motor and sensory territory, it’s often described as supplying roughly half of the skin area and muscle of the hind leg. The other nerves—femoral (which mainly handles cranial thigh muscles and contributes to medial leg sensation via the saphenous branch) and obturator (medial thigh muscles)—cover the remaining regions. Thus, the sciatic nerve fits the description as supplying half of the hind leg’s skin and muscles.