Neuro Flashcards
Stages of ALS
Stage III
- Severe weakness of specific muscles
- Increasing fatigue
- Mild to moderate functional limitations
- Ambulatory
Neurotmesis
- Class 3
- Cutting of the nerve w/ severance of all structures and complete loss of function
- Reinnervation typically fails w/o surgical intervention because of aberrant regeneration
- Failure of regenerating axon to find its terminal end
LE Extension Synergy Components
Strong Components:
- Hip Abduction
- Knee Extension
- Ankle Plantarflexion
Other Components:
- Hip extension
- IR
- Ankle Inversion
Temororal Lobe Area
- Contains:
- Primary Auditory Cortex
- Associative Auditory Cortex
- Wernicke’s Area
Patients w/ T12-L3 Lesions
- Can be independent ambulator on all surfaces/stairs
- Swing-Through/Four-Point Gait
- Bilateral KAFOs/Crutches
- Household Ambulators
- WC Community Ambulator
Fibrillation
- Spontaneous independent contractions of individual muscle fibers
- Evident w/ denervation for 1-3 weeks after losing nerve
Anterior Cord Syndrome: UMN Lesion
Loss of anterior cord:
- Loss of Lateral Corticospinal Tracts
- Bilateral loss of motor function, spastic paralysis below level of lesion
- Loss of Spinothalamic Tracts
- Bilateral loss of pain and temperature
- Preservation of Dorsal Columns
- Proprioception, kinesthesia, and vibratory sense
Glasgow Coma Scale
Score 13-15
Minor Brain Injury
Hoehn and Yahr Classification
Stage II
- Minimal bilateral or midline involvement
- No balance involvement
Stages of AD
Moderate AD
- Noticable memory, thinking, and behavioral symptoms that impair a person’s ability to function in daily life
Spinothalamic Tracts
- Lateral
- Sensations of Pain and Temperature
- Anterior
- Crude Touch
Occipital Lobe Area
- Primary Visual Cortex
- Visual Association Cortex
Most Common Lumbar SCI Injury
Flexion
ACA Blood Supply
Anterior two-thirds of the medial cerebral cortex
Functional Balance Grade: Fair
- Patient is able to maintain steady balance with hand-hold support; may require occasional minimal assistance (static).
- Patient accepts minimal challenge; able to maintain balance while turning head/trunk (dynamic).
Stages of ALS
Stage II
- Moderate weakness in groups of muscles
- Some wasting (atrophy) of muscles
- Modified independence w/ assistive devices
Fasciculations
- Spontaneous contractions of all or most of the fiber in a motor unit
- Muscle twitches that can be observed or palpated
- Present w/ LMN disorders and denervation
Posterior Cord Syndrome: UMN Lesion
Loss of dorsal columns:
- Bilateral Loss of Proprioception, Vibration, Pressure,
- Epicritic Sensation (Stereognosis/Point Discrimination)
- Preservation of Motor Function, Pain, and Light Touch
Reticulospinal System
Modifies Transmission of Sensation, Especially Pain
Brudzinski’s Sign
- Patient is positioned in supine; flex neck to chest
- Positive sign: causes flexion of hips and knees
- Suggests meningeal irritation
Patients w/ C5 Lesions
- Have Shoulder/Elbow Function
- Can use manual chair w/ propulsion aids
- Independent for short distances on smooth/flat surfaces
- May choose electric WC for distances/energy conservation
Figure-Ground Discrimination
Ability to pick out an object from an array of objects
Ex: brakes from a WC
Typical Neurological Gait Deficits
Ankle
- Equinus Gait
- Varus Foot
- Equinovarus Position
Medial Medullary Syndrome
Ipsilateral to lesion:
- Paralysis of Half of Tongue
Contralateral to lesion:
- Hemiplegia UE/LE
- Impaired Sensation