55 - Pain Insensitive and Pain Sensitive structures in Brain

A. Pain Insensitive structures in Brain : (Intracranial)
1. Brain parenchyma
2. Ependyma
3. Choroid plexus
4. Piamatter
5. Arachnoid
6. Dura over convexity of skull ( Dura around vascular sinuses and vessels is sensitive to pain)

B. Pain Sensitive structures in Brain :
B1. Intracranial :
1. Cranial venous sinuses with afferent veins
2. Arteries at base of brain and arteries of dura including
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