Pathologies Flashcards
Alzheimer’s Disease
- Progressive deterioration and damage in cerebral cortex and subcortical areas
- Decreased acetylcholine transmission in brain
- Neurofibrillary tangles and amyloid plaques
- Progressive decline in cognitive, motor, and behavioral functions.
Amyotrophic Lateral Sclerosis
- Chronic degenerative disease
- Upper and lower motor neurons
- Rapid degeneration and demyelination in giant pyramidal cells of cerebral cortex, corticospinal tracts, LMNs in gray matter, anterior horn cells, and areas in precentral gyrus.
- Denervation of muscle fibers, atrophy, weakness
Carpal Tunnel Syndrome
Cerebral Palsy
Cerebrovascular Accident
Duchenne Muscular Dystrophy
Down Syndrome
Guillain-Barre Syndrome
Multiple Sclerosis
Parkinson’s Disease
Sciatica (secondary to herniated disk)
SCI - Complete C7 Tetraplegia
SCI - Complete L3 Paraplegia
Thoracic Outlet Syndrome
Traumatic Brain Injury
Upper Motor Neuron Disease
Lesion found in descending motor tracts within the cerebral cortex, internal capsule, brainstem, or lateral whit column of spinal cord?
UMN symptoms
- Hyperreflexia
- Hypertonicity
- Weakness of involved muscles
- Mild disuse atrophy
- Abnormal reflexes
- No fasciculations (??)
UMN lesion examples
- cerebral palsy
- hydrocephalus
- ALS (both UMN and LMN)
- CVA
- birth injuries
- multiple sclerosis
- Huntington’s chorea
- TBI
- psuedobulbar palsy
- brain tumors
Lower Motor Neuron Disease
Lesion in nerves or axons below the level of the brainstem, usually within the “final common pathway” (?).
LMN lesion symptoms
- Hyporeflexia (dimished or absent)
- Hypotonicity
- Flaccidity and weakness of involved muscles
- Muscle atrophy
- Fasciculations
LMN lesion examples
- poliomyelitis
- ALS (both UMN and LMN)
- Guillain-Barre
- spinal cord tumors
- trauma
- progressive muscular atrophy
- infection
- Bell’s palsy
- carpal tunnel syndrome
- muscular dystrophy
- spinal muscular dystrophy