Neuroanatomy and Motor Control Systems Quiz
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Questions and Answers

Where is the primary motor cortex located?

  • Occipital lobe
  • Parietal lobe
  • Frontal lobe (correct)
  • Temporal lobe

Which system includes neuronal cell bodies in the cerebral cortex and their axons passing through the brainstem to the spinal cord?

  • Extrapyramidal system
  • Reticular formation
  • Pyramidal system (correct)
  • Somatosensory system

What is the major function of the primary motor cortex?

  • Processing visual information
  • Storing long-term memories
  • Regulating emotions
  • Converging cortical sensorimotor signals (correct)

What happens in the medulla regarding the pyramidal tract?

<p>It decussates, crossing the midline (D)</p> Signup and view all the answers

How does the right cortical region control body movements?

<p>By controlling the opposite side of the body (C)</p> Signup and view all the answers

What changes are observed in the primary motor cortex as a result of learning new skills?

<p>Changes in electrical activity (B)</p> Signup and view all the answers

Damage to the posterior parietal association cortex can lead to deficits in which of the following?

<p>Perception and memory of spatial relationships (C)</p> Signup and view all the answers

Which area of the brain is responsible for evaluating external stimuli and initiating reactions to them?

<p>Dorsolateral prefrontal association cortex (A)</p> Signup and view all the answers

Which part of the brain integrates information about the original position of body parts that are to be moved and positions of external objects?

<p>Posterior parietal association cortex (B)</p> Signup and view all the answers

Electrical stimulation of specific sites within which area of the brain can result in complex body movements?

<p>Primary motor cortex (B)</p> Signup and view all the answers

The supplementary motor area is mainly responsible for:

<p>Planning movements (A)</p> Signup and view all the answers

What is the function of the rubrospinal tract?

<p>Regulates motor output (A)</p> Signup and view all the answers

Which part of the brain is responsible for guiding movement through inhibition?

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

What is a characteristic of the cerebellum?

<p>It varies in size based on the range of cognitive tasks (B)</p> Signup and view all the answers

What is the main role of the extrapyramidal system?

<p>Coordinating and modulating motor activity (A)</p> Signup and view all the answers

Which part of the brain receives information from the primary and secondary motor cortex?

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

What is a common symptom associated with the loss of proper motor control?

<p>Difficulty in controlling movement direction and force (A)</p> Signup and view all the answers

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