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Flashcards in Quiz Three (Test Three) Deck (13):
1

What is the role of the mossy fibers within the cerebellum

Input; Excitatory

2

Which of the following is not a hypothesized function of the cerebellum: A)Assembling motor synergies B)Timing of Actions C)Making conscious decisions D)Posture and Balance E)Coordination

C)Making Conscious Decisions

3

Which diagnostic test involves stimulating a peripheral nerve and tracing the signal as it travels through the CNS?

Evoked Potentials

4

Which diagnostic test twill result in the best picture of neural tissue (high spatial resolution), but is expensive and requires a high degree of patient cooperation.

MRI

5

What part of the cerebral cortex would be active when a person constructs a movement from internal motor memory

Supplementary Motor Memory

6

What part of the cerebral cortex would be active during the execution of a voluntary movement

Primary motor cortex

7

Which of the following is not one of the structures from which ascending information comes into the cerebral cortex from? A) Spinal Cord B) Basil Ganglia C) Red nucleus D) Cerebellum E) Information comes into the cortex from all of the above,

C) Red Nucleus

8

Descending information from the cerebral cortex primarily goes to which structures?

Spinal Cord, Basil Ganglia, Red Nucleus, Cerebellum

9

If you stimulate one cortical cell, and activate different groups of motor units that results in different movements, which principle have you demonstrated?

Divergence

10

What is the ratio of inputs to outputs in the cerebellum?

40:1

11

What is the role of the Purkinjie cells within the cerebellum

Output; Inhibitory

12

Which descending pathway innervates the nuclei of the cranial nerves?

Corticobulbar

13

What par of the brain's primary function is integrating motor and sensory information?

Thalamus