Copy F Comparision between epidural space niversity and subarachnoid space Epidural space Subarachnoid space Location Between dura mater Between arachnoid and and peritoneum pla mater Venous plexus Cerebrospinal fluid Content nervous roots root of spinal nerve Pressure Negative Positive Communic Dont lead to cranial -ation ead to cranial cavity cavity Clinic significance lumbar anesthesia, lumbar puncture Copy Right- Hongqi ZHANG-Department of Anatomy-Fudan UniversityCopy Right- Hongqi ZHANG-Department of Anatomy-Fudan University Copy Right- Hongqi ZHANG-Department of Anatomy-Fudan University Epidural space Subarachnoid space Location Between dura mater and peritoneum Between arachnoid and pia mater Content Venous plexus nervous roots Cerebrospinal fluid root of spinal nerve Pressure Negative Positive Communic -atioin Don’t lead to cranial cavity Lead to cranial cavity Clinic significance;lumbar anesthesia,lumbar puncture Comparision between epidural space and subarachnoid space