PD Flashcards
The basal ganglia are involved in
a. volitional control
b. automatic control
d. both
e. neither
both volitional and automatic
The cortical basal ganglia loop is responsible for
a. automatic control
b. volitional control
c. planning strategies
d. motor strategies
volitional control
Which process is the strongest volitional control?
paremetal system
What are the main structures of the basal ganglia?
caudate
putamen
globus palidus
The BG is part of the _ _ system
extra paramydal system
(afferent/efferent) input to caudate and putamen from areas of cerebral cortex and thalamus
afferent
the output from the substantia nigra is governed by
dopamine
The globus pallidus sends info to the _ then to the _
thalamus
motor cortex
What are the functions of the BG?
skeletal motor circuit
oculomotor circuit
prefrontal circuit
limbic circuit
The circuits are in the regulation of
movement and cognitive behavior
What are functions of the BG?
adapt behavior as task requirements change
organize sensory input
motivation to move
This circuit prepares for and executes movement, selective activation, initiation of complex movements organized here
a. oculomotor circuit
b. limbic circuit
c. prefrontal circuit
d. skeletal motor circuit
skeletal motor circuit
This circuit is responsible for saccadic eye movement, and quick movements from one point to another
a. oculomotor circuit
b. limbic circuit
c. prefrontal circuit
d. skeletal motor circuit
oculomotor circuit
This circuit is respobile for organizing behaviors, governing and executive function, dampens on certain behaviors
a. oculomotor circuit
b. limbic circuit
c. prefrontal circuit
d. skeletal motor circuit
prefrontal circuit
This circuit is responsible for motivated behavior, procedural learning, verbal cognitive stage of learning
a. oculomotor circuit
b. limbic circuit
c. prefrontal circuit
d. skeletal motor circuit
limbic circuit
what disorders involve the action system
involuntary movements, difficulty initiating movements, akinesia, bradykinesia, postural instability
movements are (internally/externally) generated
internally
What is the average age of onset in PD?
50-60 years
Incidence (increases/decreases) with age
increases
what is the youngest onset of PD?
<21 years
2/3 of patients with PD present initially with
a. tremor
b. postural instability
c. rigidity
d. bradykinesia
tremor
1/3 of patients with PD present initially with
a. tremor
b. postural instability
c. rigidity
d. bradykinesia
postural instability
Postinfectious toxic and drugs tumors normal pressure hydrocephalus vascular metabolic these re
secondary parkinsonism
The direct loop represents _ movement
volutitional