Daniel Whiting
Quiz by , created more than 1 year ago

Bachelors Degree COGS100 Quiz on Upper Motor Neuron Control of the Brainstem and Spinal Cord, created by Daniel Whiting on 16/05/2016.

26
1
0
Daniel Whiting
Created by Daniel Whiting about 8 years ago
Close

Upper Motor Neuron Control of the Brainstem and Spinal Cord

Upper Motor Neuron Control of the Brainstem and Spinal Cord

Question 1 of 15

1

Axons in the corticobulbar tract terminate in.

Select one of the following:

  • The brainstem

  • The spinal cord

  • Extrafusal muscle fibres

  • Intrafusal muscle fibres

Explanation

Question 2 of 15

1

The relatively large cells in layer 5 of the primary motor cortex.

Select one of the following:

  • Betz cells

  • Non-Betz cells

  • Neurons

  • White matter

Explanation

Question 3 of 15

1

Axons in the corticospinal tract terminate in.

Select one of the following:

  • Intrafusal muscle fibres

  • Extrafusal muscle fibres

  • The spinal cord

  • The brainstem

Explanation

Question 4 of 15

1

Neurons in the primary cortex require very low intensity stimulation for activation and have a stimulation to muscle response delay of about...

Select one of the following:

  • 10ms

  • 1s

  • 1 microsecond

  • 30 seconds

Explanation

Question 5 of 15

1

A single upper motor neuron is thought to control.

Select one of the following:

  • A specific muscle

  • A specific movement

Explanation

Question 6 of 15

1

An upper motor neuron will fire more or less often when the direction of movement is near their prefferred direction?

Select one of the following:

  • Less

  • More

Explanation

Question 7 of 15

1

The population vector is...

Select one of the following:

  • An individual neurons preferred direction

  • The exact direction of a neurons specific direction

  • The sum of each individual neurons firing rate for a movement direction

Explanation

Question 8 of 15

1

Neurons in the pre-motor cortex are thought to fire...

Select one of the following:

  • When planning a movement

  • When performing a movement

  • After a movement

  • In response to spiders

Explanation

Question 9 of 15

1

Muscles in the face and neck are controlled by axons from the.

Select one of the following:

  • Corticobulbar tract

  • Corticospinal tract

  • Reflexive muscle fibres

  • The medial superior olive

Explanation

Question 10 of 15

1

The proximal and distal muscles are controlled by the axons from

Select one of the following:

  • The corticospinal tract

  • The corticobulbar tract

  • The medial superior olive (MSO)

  • The lateral superior olive (LSO)

Explanation

Question 11 of 15

1

Axons in the corticospinal tract have what characteristic?

Select one of the following:

  • A latency of about 70ms

  • They control facial and neck muscles

  • 90% of axons cross the midline

Explanation

Question 12 of 15

1

The muscle field is?

Select one of the following:

  • The group of muscles controlled by a given upper neuron

  • A motor unit

  • An alpha motor neuron

  • The specific muscle controlled by an upper motor neuron

Explanation

Question 13 of 15

1

Mirror neurons fire...

Select one of the following:

  • When watching a movement and while also performing the same movement

  • Only when watching a movement

  • Only when performing a movement

  • In response to non-movement stimuli

Explanation

Question 14 of 15

1

Spike triggered averaging is used to correlate muscle contractions with stimulation of upper motor neurons.

Select one of the following:

  • True
  • False

Explanation

Question 15 of 15

1

Posture stabilizing actions in secondary muscles occur in response to the primary movement...

Select one of the following:

  • Before the movement occurs

  • After the movement occurs

  • At the same time as the movement

  • Only as nessesary

Explanation

Previous
Check answer
Next