Cerebral Inflammation Flashcards
Define meningitis.
inflammation of the meninges caused by viral or bacterial infection
Define encephalitis.
inflammation of the brain caused by infection or autoimmune mechanisms
Define cerebral vasculitis.
inflammation of blood vessel walls (sometimes called angiitis)
If the CNS densely or sparsely vascularised?
densely
What forms the blood brain barrier?
capillaries with extensive tight junctions
Function of blood brain barrier
controls entry/exit of particles
Initial symptoms of encephalitis
flu like symptoms, pyrexia, headache
Subsequent symptoms of encephalitis
confusion or disorientation seizures or fits changes in personality and behaviour difficulty speaking weakness or loss of movement loss of consciousness
Most causes of encephalitis is caused by?
viral infection e.g. herpes simplex, measles, varicella, rubella
List other causes of encephalitis.
mosquito, tick, insect bites, bacterial/fungal infections, trauma, autoimmune
List treatments for encephalitis.
antivirals, steroids, antibiotics, antifungals, analgesics, anti convulsants, ventilation
What is multiple sclerosis?
autoimmune degneration demyelinating disease of CNS
Relapses in multiple sclerosis linked to?
inflammatory activity
Progression of MS is linked to?
neurodegeneration
Summarise the cellular pathology of MS.
inflammation
demyelination
axonal loss
neurodegeneration