bms3

• Jacksonian Seizures
• Stroke
• ALS

• abnormal electrical activity in primary motor cortex
• systematic

• 1. Hemorrhagic
• 2. Occlusion of arteries
• --- if corticospinal- interrupted leads to spastic hemiplegia
• --- opp side affected

degeneration of upper and lower motor neurons bc of excitotoxicity or defect in superoxide dismutase gene

• 3 semicircular canals
• 2 saclike otolith organs

• sense rotational acceleration in all directions
• cupula, ampulla

• detect linear acceleration
• saccule (vertical)
• utricle (horizontal)