Zoila Rojas
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1 Neuro (Neuroanatomy) Quiz on Neuroanatomy: Motor 2, created by Zoila Rojas on 25/03/2016.

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Zoila Rojas
Created by Zoila Rojas about 8 years ago
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Neuroanatomy: Motor 2

Question 1 of 27

1

Which of these is not a principle function of the basal ganglia

Select one of the following:

  • termination of movement

  • initiation of movement

  • maintenance of movement

  • sequencing movement

  • correcting movement

Explanation

Question 2 of 27

1

The axons of 5B pyramidal cells projects to...

Select one of the following:

  • basal ganglia

  • regions of the brainstem

  • hypothalamus

  • ipsilateral cortex

Explanation

Question 3 of 27

1

Which of these is true about structure of basal ganglia?

Select one of the following:

  • The VA/VL thalamus has an excitatory effect on the medial globus pallidus

  • The subthalamic nucleus has an excitatory effect on lateral globus pallidus

  • the striatum has an inhibitory effect on lateral and external globus pallidus

  • the indirect loop is responsible for maintenance of a movement

Explanation

Question 4 of 27

1

The substantia nigra is inhibitory on striatum.

Select one of the following:

  • True
  • False

Explanation

Question 5 of 27

1

Striatum is responsible for initiating and maintaining motor action.

Select one of the following:

  • True
  • False

Explanation

Question 6 of 27

1

Fill the blank space to complete the text.

The outflow of the basal ganglia is the .

Explanation

Question 7 of 27

1

The basal ganglia is not involved with...

Select one of the following:

  • sequencing movements

  • perceptual habits

  • motor habits

  • movement adjustments

Explanation

Question 8 of 27

1

During the termination of movement, a rat has a radioactive substance injected into striatum. The animal is sacrificed (RIP) and autoradiography is performed on brain slices. Where would labelled cells be found?

Select one of the following:

  • lateral and medial globus pallidus

  • medial globus pallidus

  • lateral globus pallidus

  • subthalamic nucleus

Explanation

Question 9 of 27

1

HRP is injected into the VA/VL thalamus of a rat. The rat is sacrificed (RIP) and its brain is sliced and the basal ganglia is imaged. Where would the labelled cells be found?

Select one of the following:

  • lateral globus pallidus

  • internal globus pallidus

  • cerebral cortex

  • substantia nigra

Explanation

Question 10 of 27

1

Damage to striatum...

Select one of the following:

  • as in hungtington's results in chorea on the contralateral sides

  • unilaterally results in excessive motor activity on contralateral side

  • results in ballistic motor actions on the contralateral side

  • results in resting tremor

Explanation

Question 11 of 27

1

Which of these is true about the substantia nigra?

Select one of the following:

  • damage to the pars reticulata results in parkinson's like deficits

  • the internal globus pallidus excites the substantia nigra

  • damage to substantia nigra produces intention tremor

  • the substantia nigra has an inhibitory and excitatory effect on striatum

Explanation

Question 12 of 27

1

Which of these is not a result of damage to the substantia nigra?

Select one of the following:

  • chorea

  • ballistic motor movement

  • intention tremor

  • dysmetria

  • none of these are true

Explanation

Question 13 of 27

1

Parkinson's disease is a result of damage to doparminergic receptors on the striatum.

Select one of the following:

  • True
  • False

Explanation

Question 14 of 27

1

The subthalamic side loop and indirect loop have an inhibitory effect on motor output.

Select one of the following:

  • True
  • False

Explanation

Question 15 of 27

1

A rat with left hemiballismus has HRP injected into the affected internal globus pallidus. Which of these is true?

Select one of the following:

  • the right substantia nigra will be tagged

  • the right subthalamic nucleus will be tagged

  • the right striatum will be tagged

  • the rat will exhibit a resting tremor

Explanation

Question 16 of 27

1

The vestibular system and inferior olivary nuclei both send and receive information to and from the cerebellum.

Select one of the following:

  • True
  • False

Explanation

Question 17 of 27

1

Which of these does not receive information from the cerebellum?

Select one of the following:

  • inferior olivary nuclei

  • VL thalamus

  • vestibular system

  • red nucleus

Explanation

Question 18 of 27

1

A cut is made on the right superior cerebellar peduncle. Which of these would be true?

Select one of the following:

  • Axons from the left dentate nuclei would degenerate

  • axons from right VL thalamus to motor cortex would degenerate

  • axons going to the right red nucleus would degenerate

  • axons going to the left VL thalamus would degenerate

Explanation

Question 19 of 27

1

A radioactive substance is injected into the pontine nuclei of a rat. The rat is sacrificed (RIP) and brain slices are imaged. What structures would be tagged?

Select one of the following:

  • axons in ipsilateral middle cerebellar penduncle

  • axons in contralateral middle cerebellar peduncle

  • axons on ipsilateral motor cortex

  • axons on contralateral motor cortex

Explanation

Question 20 of 27

1

HRP is injected into the deep nuclei of the cerebellum of a rat. The rat is sacrificed (RIP) and brain slices are imaged. What structures would not be tagged?

Select one of the following:

  • spino-cebellar tract

  • inferior olivary nucleus

  • vestibular nuclei

  • pontine nuclei

  • red nucleus

Explanation

Question 21 of 27

1

The cerebellar cortex and deep nuclei receive information via the inferior cerebellar peduncle and middle cerebellar peduncle.

Select one of the following:

  • True
  • False

Explanation

Question 22 of 27

1

Niacin deficiency results in degeneration of what structure?

Select one of the following:

  • posterior lobe of cerebellum

  • anterior lobe of cerebellum

  • flocculonodular lobe of cerebellum

Explanation

Question 23 of 27

1

Which region of the cerebellum receives massive input from vestibular system?

Select one of the following:

  • flocculonodular lobe

  • vermis + intermediate zone

  • neocerebellar

  • deep nuclei

Explanation

Question 24 of 27

1

Loss of coordination in axial musculature may occur due to damage in the neocerebellum.

Select one of the following:

  • True
  • False

Explanation

Question 25 of 27

1

Fill the blank space to complete the text.

The functional zone that receives the greatest amount of information from the cerebral cortex is the .

Explanation

Question 26 of 27

1

The principal output component of the cerebellum are the deep nuclei.

Select one of the following:

  • True
  • False

Explanation

Question 27 of 27

1

Which of these is true about the basic circuit of the cerebellum?

Select one of the following:

  • Granular cells send output to the pontine nuclei and inferior olivary nuclei.

  • Purkinje cells send output to granular cells

  • Deep nuclei receive input from vestibular nuclei and spinocerebellar

  • the cerebellar cortex is facilitatory on the output of the deep nuclei

Explanation

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