2023年11月2日 · The sciatic nerve is a mixed nerve that provides numerous branches for sensory and motor supply for the skin and muscles of the lower limb. Additionally, it provides articular branches for the innervation of the lower limb joints.

2024年4月26日 · The sciatic nerve also indirectly innervates several other muscles, via its two terminal branches: Tibial nerve – the muscles of the posterior leg (calf muscles), and some of the intrinsic muscles of the foot.

At the popliteal fossa, the nerve divides into its two branches: [1]: 532. The sciatic nerve is the largest nerve in the human body. [2]: 422–4 [3][4] 3D still showing Sciatica. The sciatic nerve supplies sensation to the skin of the foot, as well as the entire lower leg (except for its inner side).

The sciatic nerve splits into 2 main branches near the back of the knee at a point called the popliteal fossa. The popliteal fossa is a rhomboid-shaped space that serves as a conduit for blood vessels and nerves in the leg.

The nerve ends at the upper aspect of the popliteal fossa where it branches to distal nerves (tibial and common peroneal nerve). Prior to diverging, the tibial and common peroneal nerves are structurally separate and only loosely held together as the sciatic nerve.

Branches: Muscular branches and the tibial and common fibular nerve. Supply: Motor innervation to the posterior compartment of the thigh via muscular branches; the posterior compartment of the leg via the tibial nerve; the muscles of the anterior and lateral compartments of the leg via the common fibular nerve.

2019年7月12日 · The sciatic nerve originates from lumbosacral plexus L4-S3 . tibial division. orginates from anterior preaxial branches of L4,L5,S1,S2,S3; peroneal division. originates from from postaxial branches of L4,L5,S1,S2; Course: Exits sciatic notch . runs anterior or …

2025年1月22日 · The sensory functions of the sciatic nerve are primarily carried out by its terminal branches—the tibial nerve and common fibular nerve—which provide sensation to different regions of the leg and foot.

Besides the motor function, the Sciatic nerve carries sensory signals from the legs and feet through its branches. The sensation from the back of the leg (calf) and the outer sole is carried by the tibial nerve.

After traveling through the greater sciatic foramen in the pelvis, the sciatic nerve innervates a series of muscles along its course. An undivided, thick nerve extends from the pelvis to the knee. Near the back of the knee, the nerve divides into the …