- Mainly from branches
of the Trigerminal e.g ethmoidal, lacrimal and nervous spinosum
- It also gets sensory twigs from Vagus
- Cervical nerves C1-C2, Facial and Glossopharyngeal.
Sensory endings are more numerous at:
- Each side of the superior sagittal
sinus and tentorium cerebelli.
- Where arteries and veins pierce the
- The brain
is insensitive to pain, but the cerebral
dura is very sensitive, especially
around the venous sinuses.
- Many headaches are of dural and/or
- Indeed, one of the commonest presentations
of meningitis is severe headache and neck stiffness.
- Irritation of C1-C2 in meningitis causes posterior neck muscles to contract causing the stiffness.