Flashcards in SCI&CNS Disorders (Gas#15&16) Deck (161)
upper motor neurons carry impulses to or from brain?
Damage to upper motor neurons results in
increased muscle tone, loss of voluntary control, decreased coordination, hyperactive/abnormal reflexes
Damage to lower motor neurons results in
decreased muscle tone, absent or decreased reflexes, muscle atrophy
Sensory, carry pain, temp (Afferent)
Ascending sensory paths
Motor, voluntary purposeful movements (efferent)
Descending motor pathways
progressive muscle degeneration and wasting
Duchenne's Muscular Dystrophy
loss of muscle tissue thats replaced with connective tissue; muscles deteriorate
Patients with Duchenne's Muscular Dystrophy have an absense of what?
Duschenne's Muscular Dystrophy s/s
weak pelvic & shoulder gait, waddling gait, toe walking, hypertrophy of calf muscles, fatigue, skeletal deformities, cardiomyopathy
What age does Duschenne's Muscular Dystrophy occur
3-5 yrs old
Acute stage of Guillain-Barre Syndrome (GBS)?
Severe rapid weakness, loss of strength, resp failure, loss of facial movement, bradycardia, hypotension, sweating, SIAH (retaining H2O &NA)
what happens after 2-3 weeks after initial onset of Acute stage of Guillain-Barre Syndrome (GBS)
they go into a plateau stage, their symptoms level off
Is Guillain-Barre Syndrome (GBS) an emergency?
yes because they don't know how fast
Guillain-Barre Syndrome (GBS)
Rapid muscle weakness & paralysis (disorder of the PNS), paralysis starts from the feet and goes up
what can cause Guillain-Barre Syndrome (GBS)
eating undercooked poultry, ebstein barr virus
what gets inflamed with Guillain-Barre Syndrome (GBS)
segmental demyelination of peripheral nerves causes inflammation & degeneration in sensory & motor nerve roots
s/s Guillain-Barre Syndrome (GBS)
Ascending paralysis, poor nerve conduction, facial nerve involvement, may have respiratory involvement
what system is not affected with Guillain-Barre Syndrome (GBS)
cognitive & LOC
A chronic progressive neuromuscular disorder, it destroys, alters receptors for ACH
What do you need ACH for?
Without ACH in Myasthenia Gravis what happens to muscles?
This results in voluntary muscle weakness that escalates with continued activity
Myasthenia Gravis s/s
Diplopia (double vision), Ptosis (drooping of eye lid), generalized muscle weakness (therefor at risk for aspiration), laryngeal involvement
drooping of eye lid
what system is not effect with Myasthenia Gravis
Dianosis for Myasthenia Gravis
used for Myasthenia Gravis, IV Tensilon is used. It prevents the breakdon of ACH so youll see an improvement within 5 mins. If no improvement its not MG