Zusammenfassung der Ressource
Frage 1
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Axons in the corticobulbar tract terminate in.
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The brainstem
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The spinal cord
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Extrafusal muscle fibres
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Intrafusal muscle fibres
Frage 2
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The relatively large cells in layer 5 of the primary motor cortex.
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Betz cells
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Non-Betz cells
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Neurons
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White matter
Frage 3
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Axons in the corticospinal tract terminate in.
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Intrafusal muscle fibres
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Extrafusal muscle fibres
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The spinal cord
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The brainstem
Frage 4
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Neurons in the primary cortex require very low intensity stimulation for activation and have a stimulation to muscle response delay of about...
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10ms
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1s
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1 microsecond
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30 seconds
Frage 5
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A single upper motor neuron is thought to control.
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A specific muscle
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A specific movement
Frage 6
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An upper motor neuron will fire more or less often when the direction of movement is near their prefferred direction?
Frage 7
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The population vector is...
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An individual neurons preferred direction
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The exact direction of a neurons specific direction
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The sum of each individual neurons firing rate for a movement direction
Frage 8
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Neurons in the pre-motor cortex are thought to fire...
Frage 9
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Muscles in the face and neck are controlled by axons from the.
Frage 10
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The proximal and distal muscles are controlled by the axons from
Frage 11
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Axons in the corticospinal tract have what characteristic?
Frage 12
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The muscle field is?
Frage 13
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Mirror neurons fire...
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When watching a movement and while also performing the same movement
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Only when watching a movement
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Only when performing a movement
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In response to non-movement stimuli
Frage 14
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Spike triggered averaging is used to correlate muscle contractions with stimulation of upper motor neurons.
Frage 15
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Posture stabilizing actions in secondary muscles occur in response to the primary movement...
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Before the movement occurs
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After the movement occurs
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At the same time as the movement
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Only as nessesary