2. NEURONS
CELL BODIES
AXONS AND DENDRITES
NERVE IMPULSE
TYPES OF NERVES- SENSORY , MOTOR AND
MIXED
SYNAPSE
NEUROTRANSMITTERS
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3. BRAIN CELLS- ASTROCYTES,
OLIGODENDROCYTES, MICROGLIA AND
EPENDYMAL CELLS.
MENINGES- DURA MATER, PIA MATER AND
ARACHNOID MATER.
VENRICLES OF BRAIN- RIGHT AND LEFT
VENRICLE, THIRD VENTRICLE AND FOURTH
VENTRICLE.
CSF- WATER, MINERAL SALTS, GLUCOSE,
PLASMA PROEINS, CREATININE,
UREA AND A FEW LEUCOCYTES.
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11. PRESENILE
DEMENTIA
ARISES SHARPLY
WITH AGE
LOSS OF NEURONS
SHORT TERM
MEMORY LOSS
COGNITIVE
DEFICITS
DEPOSITION OF BETA
AMYLOID PLAQUES
NEUROFIBRILLARY
TANGLES- TAU
PHOSPHORYLATION
SECRETASES CAUSES
APP CLEAVAGE INTO
AB40 AND AB42
CAUSING AMYLOID
FORMATION
DECREASE ACH LEVELS
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16. DISTURBENCE IN
MOTOR NEURON OF
VENTRAL HORN OF
SPINAL CORD AND
CORTICAL NEURON
SPASTICITY
MUSCLE WEAKNESS
FASCICULATIONS
RESPIRATORY
COMPROMISE
TREATMENT-
RILUZOLE,
BACLOFEN,
TIZANIDINE,
CLONAZEPAM
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17. CHARACTERISED BY
MOVEMENT
DISORDERS
TREMOR AT REST
MUSCLE RIGIDITY
SUPRESSION OF
VOLUNTARY
MOVEMENTS
SHUFFLING GAIT,
HYPOKINESIS
ENVIRONMENTAL
TREGERS
PROTEIN MISFOLDING
AND AGGREGATION
EXCITOTOXICITY
OXIDATIVE STRESS
APOPTOSIS
DEGENERATIVE LESION
IN SN-PC AND
DECREASED
DOPAMINERGIC INPUT
IMBALANCE BTW DA
AND ACH
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