Copy Right-i Spinal arachnoid mater n University Thin and transparent, located between dura mater pia mater, trabeculum are seen Subarachnoid space Arachnoid mater Copy Right- Hongqi ZHANG versityCopy Right- Hongqi ZHANG-Department of Anatomy-Fudan University Copy Right- Hongqi ZHANG-Department of Anatomy-Fudan University Thin and transparent,located between dura mater & pia mater,trabeculum are seen. Spinal arachnoid mater Arachnoid mater Subarachnoid space