5438531
Descrição
Quiz por Daniel Whiting, atualizado more than 1 year ago
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Criado por Daniel Whiting
aproximadamente 8 anos atrás
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Questão 1
Questão
Axons in the corticobulbar tract terminate in.
Responda
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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
Questão 2
Questão
The relatively large cells in layer 5 of the primary motor cortex.
Responda
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Betz cells
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Non-Betz cells
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Neurons
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White matter
Questão 3
Questão
Axons in the corticospinal tract terminate in.
Responda
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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
Questão 4
Questão
Neurons in the primary cortex require very low intensity stimulation for activation and have a stimulation to muscle response delay of about...
Responda
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10ms
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1s
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1 microsecond
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30 seconds
Questão 5
Questão
A single upper motor neuron is thought to control.
Responda
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A specific muscle
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A specific movement
Questão 6
Questão
An upper motor neuron will fire more or less often when the direction of movement is near their prefferred direction?
Responda
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Less
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More
Questão 7
Questão
The population vector is...
Responda
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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
Questão 8
Questão
Neurons in the pre-motor cortex are thought to fire...
Responda
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When planning a movement
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When performing a movement
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After a movement
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In response to spiders
Questão 9
Questão
Muscles in the face and neck are controlled by axons from the.
Responda
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Corticobulbar tract
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Corticospinal tract
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Reflexive muscle fibres
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The medial superior olive
Questão 10
Questão
The proximal and distal muscles are controlled by the axons from
Responda
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The corticospinal tract
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The corticobulbar tract
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The medial superior olive (MSO)
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The lateral superior olive (LSO)
Questão 11
Questão
Axons in the corticospinal tract have what characteristic?
Responda
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A latency of about 70ms
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They control facial and neck muscles
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90% of axons cross the midline
Questão 12
Questão
The muscle field is?
Responda
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The group of muscles controlled by a given upper neuron
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A motor unit
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An alpha motor neuron
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The specific muscle controlled by an upper motor neuron
Questão 13
Questão
Mirror neurons fire...
Responda
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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
Questão 14
Questão
Spike triggered averaging is used to correlate muscle contractions with stimulation of upper motor neurons.
Responda
- True
- False
Questão 15
Questão
Posture stabilizing actions in secondary muscles occur in response to the primary movement...
Responda
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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
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