Zoology 342: Motor Systems III (Chapter 26) - Motor Coordination
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Questions and Answers

Where is coordination largely controlled by?

  • Frontal lobe
  • Parietal lobe
  • Cerebellum (correct)
  • Hippocampus

What is the nickname given to the Basal Ganglia?

  • Little brain (correct)
  • Big brain
  • Brainstem
  • Middle brain

Which region of the cerebellum is associated with motor control in mammals?

  • Medulla
  • Thalamus
  • Vermis (correct)
  • Corpus callosum

Which type of cells form a monolayer and are the sole output of the cerebellar cortex?

<p>Purkinje cells (B)</p> Signup and view all the answers

How many main regions are there in the cerebellum in mammals?

<p>Three (D)</p> Signup and view all the answers

What is the main type of input received by Purkinje cells from granule cells?

<p>Parallel fibers (D)</p> Signup and view all the answers

What is the main input to the inferior olive?

<p>Climbing fibers (C)</p> Signup and view all the answers

Which nuclei are mainly influenced by projections from the Fastigial Nucleus?

<p>Vestibular nuclei (B)</p> Signup and view all the answers

What is another name for the Globose and Emboliform nuclei?

<p>Interposed Nuclei (D)</p> Signup and view all the answers

Which tract is influenced by projections from the Fastigial Nucleus for balance and posture control?

<p>Reticulospinal tract (B)</p> Signup and view all the answers

From where does the Clarke's dorsal nucleus receive its input related to proprioception?

<p>Spinocerebellar tract (A)</p> Signup and view all the answers

Which cells receive input from Climbing fibers?

<p>Purkinje cells (D)</p> Signup and view all the answers

What is the main projection of the interposed nuclei?

<p>To the nucleus ruber (D)</p> Signup and view all the answers

Which area does the dorsal dentate nucleus mainly project to?

<p>Ventrolateral thalamus (C)</p> Signup and view all the answers

What is the role of Climbing Fibre in the cerebellum's motor adaptation process?

<p>Reducing the strength of the motor command (D)</p> Signup and view all the answers

What is a common symptom of Cerebellar defects?

<p>'Cerebellar gait' - unsteady and halting movements (D)</p> Signup and view all the answers

What function does the ventral dentate nucleus serve?

<p>Projecting mainly to the ventroanterior thalamus (C)</p> Signup and view all the answers

How do MI, basal ganglia, and cerebellum contribute to movement execution?

<p>Aiding in movement planning and execution through interactions and feedback loops (D)</p> Signup and view all the answers

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