Chpt. 6. Parkinsons and MS Flashcards
What is Parkinson’s Disease?
a progressive neurodegenerative disease which involves the loss of cells in a part of the brain called the substantia nigra (produces dopamine)
It is estimated that by the time the diagnosis of Parkinson’s is made, approximately __ of dopamine-producing cells (which act as messengers between brain cells that ___ ____) have already stopped!
- 80%
- control movement
Approx. how many Canadians have Parkinsons (ususally around age 60) ?
100,000
In younger patients what symptoms is more frequently seen in Parkinson’s?
- dystonia (involuntary muscle contraction)
- motor fluctuations and -dyskinesia (onvoluntary movement) associated with LEVODOPA
What symptom is less common in younger people with Parkinsons?
- trembling
- cognitive disorders (memory impairment/concentration difficulties)
What is another term for Parnkinson’s ?
“extrapyramidal disorder” : something that happens at the medulla oblongdata (looks like pyramid)
The Extrapyramidal system consists of the __ (incl. substantia nigra). Axon goes from Substantia nigra to ___ and “smoothes out my movements” working with the cerebellum to inhibit unwanted movements.
- basal ganglia
- cerebellum
What is the most common disorder of the Extrapyramidal tracts? and what are the other 3?
- Parkinson’s
also: Chorea, Athetosis, Ballismus (involuntary movement)
What are 4 Signs of Parkinsons?
- Tremor
- Rigidity/spasticity
- Bradykinesia
- Mask like face
- pin-rolling
- festinating gait
What are the some (4) causes of Parkinson’s?
- idiopathic (degration of Subst. Nigra)
- Toxic Exposure
- Arteriosclerotic (mini stroke)
- Shy-Drager Syndrome
*What is Shy Drager Syndrome?
-Associated with hypotension, frequent urinary incontinence and frequent fainiting in Parkinson’s
What mainly produces all the dopamine in brain?
-Substantia Nigra (SN) and Basal Ganglia (BG)
What is Rigidity and how is it caused?
-enlarged muscle spindles; caused by over-stimulation (too much Ach)
*What are 3 exercises for Parkinsons?
- trunk flexion/extension (even rotation to break up trunk tone)
- balance exercises
- facial mobility
*Give me 3 standing exercises for Parkinsons
- Step turns: breaks up festinating gait
- Shift fwd and lean back: breaks up tone in back
- Step over bolsters/obstacles: balance