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*# Pia mater
 
*# Pia mater
 
*#* highly vascular connective tissue, very closely applied to brain tissue
 
*#* highly vascular connective tissue, very closely applied to brain tissue
* The '''epidural space''' lies between the bone layer (skull or vertebrae) and the dura-arachnoid layer.
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** Local anaesthetic is injected here in epidural anaesthesia.
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*** E.g. when calving cows.
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* The '''sub-arachnoid space''' lies between the arachnoid layer and the pia mater.
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** CSF filled.
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** This is where myelographic contrast medium is injected.
         
[[Category:Nervous System - Anatomy & Physiology]]
 
[[Category:Nervous System - Anatomy & Physiology]]