Identify the following: Level of caudal end of subarachnoid space Epidural, subarachnoid spaces Level of caudal end of spinal cord Solution Answer:- Level of caudal end of Subarachnoid space is lower border S-2 Vertebra. Epidural- Basically epidural space is define as the outermost part of the spinal canal.it is also called as the epidural cavity. this space lying outside th edura meter. Dura meter enclsoed by the subarachnoid space. it contains a lumphatics spinal nerve roots and network of internal vertebral venous plexuses.level is L1 & L2. Level of caudal end of spinal cord. - The Spinal cord can be defined as the long , thin tubular bundles of nervous tissue and it supports cells and it run in vertebral column. the caudal end of spianl cord is generaly cone shaped it is also called as the conus medullaris. and its ends at S2 level..