Motor System at Radboud University | Flashcards & Summaries

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Lernmaterialien für Motor system an der Radboud University

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TESTE DEIN WISSEN
Describe pathway of the corticospinal tracts
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TESTE DEIN WISSEN
Motor cortex -> down the spinal cord -> at brainstem level: separated into lateral (crosses side) and anterior corticospinal tract (stays on the side) 
Lösung ausblenden
TESTE DEIN WISSEN
Steps performed by the CNS to pick up a cup
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TESTE DEIN WISSEN
Visual cortex (located the cup)
information is relayed to cortical somatosensory regions
these relay it to the motor regions (plan and initiate movement)
information is send to spinal cord segments (which control arm and hand muscles)
cup is grabbed
the sensory receptors in the fingers adjust the grip and send information back (through spinal cord)
to somatosensory cortex
then to the motor cortex
thr subcortical basal ganglia helps to produce an appropriate amount of force
in the brainstem, the cerebellum helps regulating movement timing and accuracy 
Lösung ausblenden
TESTE DEIN WISSEN
A way to enhance recovery of an injured limb
Lösung anzeigen
TESTE DEIN WISSEN
Constraint-induced therapy: restrain the good limb and force to use and train the affected limb (cortical region retains its size)
Lösung ausblenden
TESTE DEIN WISSEN
The cerebellum has three layers of cells. What are the cells of the second layer and what is their function?
Lösung anzeigen
TESTE DEIN WISSEN
Purkinje cells: output cells 
Lösung ausblenden
TESTE DEIN WISSEN
Which part of the body does the right motor cortex control?
Lösung anzeigen
TESTE DEIN WISSEN
The left side of the body
Lösung ausblenden
TESTE DEIN WISSEN
What is the brainstem‘s function?
Lösung anzeigen
TESTE DEIN WISSEN
Controlling species-related behavior
Lösung ausblenden
TESTE DEIN WISSEN
Do the three frontal cortex regions work hierarchically or parallel (independently)?
Lösung anzeigen
TESTE DEIN WISSEN
Both: they work hierarchically, but they are also active in several other tasks independently 
Lösung ausblenden
TESTE DEIN WISSEN
What are complex movements composed of?
Lösung anzeigen
TESTE DEIN WISSEN
Several motor sequences (preprogrammed by the brain and produced as a unit)
Lösung ausblenden
TESTE DEIN WISSEN
What is 1. Loss of sensation in lower body (unilateral lesion), 2. loss of sensation in lower body (bilateral lesion), 3. loss of sensation in the whole body (unilateral lesion), 4. loss of sensation in the whole body (bilateral lesion) called?
Lösung anzeigen
TESTE DEIN WISSEN
1, monoplegia
2. paraplegia
3. hemiplegia
4. quadriplegia
Lösung ausblenden
TESTE DEIN WISSEN
Where is C4 in the spinal cord and what motor and sensory deficits would be in a patient with a lesion at C4? (Unilateral or bilateral)
Lösung anzeigen
TESTE DEIN WISSEN
At the neck: Loss of sensation in the whole body (bilateral) or loss of touch ipsilaterally and no pain and temperature feeling contralaterally (unilateral)
Lösung ausblenden
TESTE DEIN WISSEN
What did Wilder Penfield create regarding the representation of the body in the primary motor cortex?
Lösung anzeigen
TESTE DEIN WISSEN
The homunculus
Lösung ausblenden
TESTE DEIN WISSEN
What are the functions of 1. prefrontal cortex, 2. premoter cortex and 3. primary motor cortex?
Lösung anzeigen
TESTE DEIN WISSEN
1. planning movement (decision about a goal, NOT specifying the movement)
2. organizing motor sequences
3. production of movement
Lösung ausblenden
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Q:
Describe pathway of the corticospinal tracts
A:
Motor cortex -> down the spinal cord -> at brainstem level: separated into lateral (crosses side) and anterior corticospinal tract (stays on the side) 
Q:
Steps performed by the CNS to pick up a cup
A:
Visual cortex (located the cup)
information is relayed to cortical somatosensory regions
these relay it to the motor regions (plan and initiate movement)
information is send to spinal cord segments (which control arm and hand muscles)
cup is grabbed
the sensory receptors in the fingers adjust the grip and send information back (through spinal cord)
to somatosensory cortex
then to the motor cortex
thr subcortical basal ganglia helps to produce an appropriate amount of force
in the brainstem, the cerebellum helps regulating movement timing and accuracy 
Q:
A way to enhance recovery of an injured limb
A:
Constraint-induced therapy: restrain the good limb and force to use and train the affected limb (cortical region retains its size)
Q:
The cerebellum has three layers of cells. What are the cells of the second layer and what is their function?
A:
Purkinje cells: output cells 
Q:
Which part of the body does the right motor cortex control?
A:
The left side of the body
Mehr Karteikarten anzeigen
Q:
What is the brainstem‘s function?
A:
Controlling species-related behavior
Q:
Do the three frontal cortex regions work hierarchically or parallel (independently)?
A:
Both: they work hierarchically, but they are also active in several other tasks independently 
Q:
What are complex movements composed of?
A:
Several motor sequences (preprogrammed by the brain and produced as a unit)
Q:
What is 1. Loss of sensation in lower body (unilateral lesion), 2. loss of sensation in lower body (bilateral lesion), 3. loss of sensation in the whole body (unilateral lesion), 4. loss of sensation in the whole body (bilateral lesion) called?
A:
1, monoplegia
2. paraplegia
3. hemiplegia
4. quadriplegia
Q:
Where is C4 in the spinal cord and what motor and sensory deficits would be in a patient with a lesion at C4? (Unilateral or bilateral)
A:
At the neck: Loss of sensation in the whole body (bilateral) or loss of touch ipsilaterally and no pain and temperature feeling contralaterally (unilateral)
Q:
What did Wilder Penfield create regarding the representation of the body in the primary motor cortex?
A:
The homunculus
Q:
What are the functions of 1. prefrontal cortex, 2. premoter cortex and 3. primary motor cortex?
A:
1. planning movement (decision about a goal, NOT specifying the movement)
2. organizing motor sequences
3. production of movement
Motor system

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