Test
Neuroanatomy: Motor 2
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Preguntas del test (27)
1Which of these is not a principle function of the basal ganglia
- Atermination of movement
- Binitiation of movement
- Cmaintenance of movement
- Dsequencing movement
- Ecorrecting movement
2The axons of 5B pyramidal cells projects to...
- Abasal ganglia
- Bregions of the brainstem
- Chypothalamus
- Dipsilateral cortex
3Which of these is true about structure of basal ganglia?
- AThe VA/VL thalamus has an excitatory effect on the medial globus pallidus
- BThe subthalamic nucleus has an excitatory effect on lateral globus pallidus
- Cthe striatum has an inhibitory effect on lateral and external globus pallidus
- Dthe indirect loop is responsible for maintenance of a movement
4The substantia nigra is inhibitory on striatum.
- AVerdadero
- BFalso
5Striatum is responsible for initiating and maintaining motor action.
- AVerdadero
- BFalso
6The outflow of the basal ganglia is the [blank_start]globus pallidus[blank_end].
- Aglobus pallidus
7The basal ganglia is not involved with...
- Asequencing movements
- Bperceptual habits
- Cmotor habits
- Dmovement adjustments
8During 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?
- Alateral and medial globus pallidus
- Bmedial globus pallidus
- Clateral globus pallidus
- Dsubthalamic nucleus
9HRP 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?
- Alateral globus pallidus
- Binternal globus pallidus
- Ccerebral cortex
- Dsubstantia nigra
10Damage to striatum...
- Aas in hungtington's results in chorea on the contralateral sides
- Bunilaterally results in excessive motor activity on contralateral side
- Cresults in ballistic motor actions on the contralateral side
- Dresults in resting tremor
11Which of these is true about the substantia nigra?
- Adamage to the pars reticulata results in parkinson's like deficits
- Bthe internal globus pallidus excites the substantia nigra
- Cdamage to substantia nigra produces intention tremor
- Dthe substantia nigra has an inhibitory and excitatory effect on striatum
12Which of these is not a result of damage to the substantia nigra?
- Achorea
- Bballistic motor movement
- Cintention tremor
- Ddysmetria
- Enone of these are true
13Parkinson's disease is a result of damage to doparminergic receptors on the striatum.
- AVerdadero
- BFalso
14The subthalamic side loop and indirect loop have an inhibitory effect on motor output.
- AVerdadero
- BFalso
15A rat with left hemiballismus has HRP injected into the affected internal globus pallidus. Which of these is true?
- Athe right substantia nigra will be tagged
- Bthe right subthalamic nucleus will be tagged
- Cthe right striatum will be tagged
- Dthe rat will exhibit a resting tremor
16The vestibular system and inferior olivary nuclei both send and receive information to and from the cerebellum.
- AVerdadero
- BFalso
17Which of these does not receive information from the cerebellum?
- Ainferior olivary nuclei
- BVL thalamus
- Cvestibular system
- Dred nucleus
18A cut is made on the right superior cerebellar peduncle. Which of these would be true?
- AAxons from the left dentate nuclei would degenerate
- Baxons from right VL thalamus to motor cortex would degenerate
- Caxons going to the right red nucleus would degenerate
- Daxons going to the left VL thalamus would degenerate
19A 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?
- Aaxons in ipsilateral middle cerebellar penduncle
- Baxons in contralateral middle cerebellar peduncle
- Caxons on ipsilateral motor cortex
- Daxons on contralateral motor cortex
20HRP 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?
- Aspino-cebellar tract
- Binferior olivary nucleus
- Cvestibular nuclei
- Dpontine nuclei
- Ered nucleus
21The cerebellar cortex and deep nuclei receive information via the inferior cerebellar peduncle and middle cerebellar peduncle.
- AVerdadero
- BFalso
22Niacin deficiency results in degeneration of what structure?
- Aposterior lobe of cerebellum
- Banterior lobe of cerebellum
- Cflocculonodular lobe of cerebellum
23Which region of the cerebellum receives massive input from vestibular system?
- Aflocculonodular lobe
- Bvermis + intermediate zone
- Cneocerebellar
- Ddeep nuclei
24Loss of coordination in axial musculature may occur due to damage in the neocerebellum.
- AVerdadero
- BFalso
25The functional zone that receives the greatest amount of information from the cerebral cortex is the [blank_start]neocerebellum[blank_end].
- Aneocerebellum
26The principal output component of the cerebellum are the deep nuclei.
- AVerdadero
- BFalso
27Which of these is true about the basic circuit of the cerebellum?
- AGranular cells send output to the pontine nuclei and inferior olivary nuclei.
- BPurkinje cells send output to granular cells
- CDeep nuclei receive input from vestibular nuclei and spinocerebellar
- Dthe cerebellar cortex is facilitatory on the output of the deep nuclei
Información
- Descripción
- 1 (Neuroanatomy) Neuro Test sobre Neuroanatomy: Motor 2, creado por Zoila Rojas el 25/03/2016.
- Autor
- Zoila Rojas
- Idioma
- English
- Visitas
- 45
- Etiquetas
- Valoración
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