title: Nerve blocks in the lower extremities: anatomic considerations.
mesh_terms: D006801:Humans; D009407:Nerve Block / Q000379:methods*; D009776:Obturator Nerve / Q000033:anatomy & histology / Q000601:surgery*; D012584:Sciatic Nerve / Q000033:anatomy & histology / Q000601:surgery*; D013035:Spasm / Q000601:surgery*; D013979:Tibial Nerve / Q000033:anatomy & histology / Q000601:surgery*