EANS TEST - 1 PHASE - i wanna be Rhotons daughter!
ANATOMY REVIEW
MENINGES
3 division : dura, pia, arachnoid
- dura : 2 layers -periosteal and meningeal
- § spinal dura has one layer - it finish em s2
- Pia - 2 layer intimal and epipia ( the epipia forms de filum terminalis→coccygeal ligament)
- spine - denteade liggaments conects epipia to dura Always on lateral surface of spinal cord between the ventral and dorsal roots
Embryology : Mesoderm
- mesoderm - external meninge and blood vessels
- ectoderm - pia , aracnoid, glia, ependyma and neural parenchima
Blood supply :
- anterior meningeal artery - branch a. ethmoidal anterior →a. ophtalmic→ACI (1branch)
- medial meningeal artery →a.maxilar →ACE
- posterior meningeal artery →a.occiptal ±a.vertebral
- Supratentorial - Branches V1, V2,V3
- Infratentorial - branches C1 e C2 and X par (vagus).