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The tibial nerve, which travels down the posterior compartment of the leg into the foot; The common fibular nerve (also called the common peroneal nerve), which travels down the anterior and lateral compartments of the leg into the foot; The sciatic nerve is the largest nerve in the human body. [2]: 422–4 [3] [4] 3D still showing Sciatica.
Sciatica may also occur during pregnancy, especially during later stages, as a result of the weight of the fetus pressing on the sciatic nerve during sitting or during leg spasms. [15] While most cases do not directly harm the woman or the fetus, indirect harm may come from the numbing effect on the legs, which can cause loss of balance and falls.
Cutaneous innervation of the lower limbs is the nerve supply to areas of the skin of the lower limbs (including the feet) which are supplied by specific cutaneous nerves. Modern texts are in agreement about which areas of the skin are served by which nerves , but there are minor variations in some of the details.
The sciatic nerve is about 2 centimeters in diameter and consists of the L4 to S2 nerve roots, which join at the pelvis and run down the back of the thigh, says Chellsen.
The hamstrings are innervated by the sciatic nerve, specifically by a main branch of it: the tibial nerve. (The short head of the biceps femoris is innervated by the common fibular nerve). The sciatic nerve runs along the longitudinal axis of the compartment, giving the cited terminal branches close to the superior angle of the popliteal fossa.
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Piriformis syndrome occurs when the piriformis irritates the sciatic nerve, which comes into the gluteal region beneath the muscle, causing pain in the buttocks and referred pain along the sciatic nerve. [8] This referred pain is known as sciatica. Seventeen percent of the population has their sciatic nerve coursing through the piriformis muscle.
Sciatica is a condition characterized by deep pain occurs in the back and/or legs. It is the result of a compressed sciatic nerve, which runs from the lower back to just below the knee.
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