Test
Upper Motor Neuron Control of the Brainstem and Spinal Cord
Preguntas del test (15)
1Axons in the corticobulbar tract terminate in.
- AThe brainstem
- BThe spinal cord
- CExtrafusal muscle fibres
- DIntrafusal muscle fibres
2The relatively large cells in layer 5 of the primary motor cortex.
- ABetz cells
- BNon-Betz cells
- CNeurons
- DWhite matter
3Axons in the corticospinal tract terminate in.
- AIntrafusal muscle fibres
- BExtrafusal muscle fibres
- CThe spinal cord
- DThe brainstem
4Neurons in the primary cortex require very low intensity stimulation for activation and have a stimulation to muscle response delay of about...
- A10ms
- B1s
- C1 microsecond
- D30 seconds
5A single upper motor neuron is thought to control.
- AA specific muscle
- BA specific movement
6An upper motor neuron will fire more or less often when the direction of movement is near their prefferred direction?
- ALess
- BMore
7The population vector is...
- AAn individual neurons preferred direction
- BThe exact direction of a neurons specific direction
- CThe sum of each individual neurons firing rate for a movement direction
8Neurons in the pre-motor cortex are thought to fire...
- AWhen planning a movement
- BWhen performing a movement
- CAfter a movement
- DIn response to spiders
9Muscles in the face and neck are controlled by axons from the.
- ACorticobulbar tract
- BCorticospinal tract
- CReflexive muscle fibres
- DThe medial superior olive
10The proximal and distal muscles are controlled by the axons from
- AThe corticospinal tract
- BThe corticobulbar tract
- CThe medial superior olive (MSO)
- DThe lateral superior olive (LSO)
11Axons in the corticospinal tract have what characteristic?
- AA latency of about 70ms
- BThey control facial and neck muscles
- C90% of axons cross the midline
12The muscle field is?
- AThe group of muscles controlled by a given upper neuron
- BA motor unit
- CAn alpha motor neuron
- DThe specific muscle controlled by an upper motor neuron
13Mirror neurons fire...
- AWhen watching a movement and while also performing the same movement
- BOnly when watching a movement
- COnly when performing a movement
- DIn response to non-movement stimuli
14Spike triggered averaging is used to correlate muscle contractions with stimulation of upper motor neurons.
- AVerdadero
- BFalso
15Posture stabilizing actions in secondary muscles occur in response to the primary movement...
- ABefore the movement occurs
- BAfter the movement occurs
- CAt the same time as the movement
- DOnly as nessesary
Información
- Descripción
- Bachelors Degree COGS100 Test sobre Upper Motor Neuron Control of the Brainstem and Spinal Cord, creado por Daniel Whiting el 16/05/2016.
- Autor
- Daniel Whiting
- Idioma
- English
- Visitas
- 45
- Etiquetas
- Valoración
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