T2 L13: Motor learning and neurological syndromes
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Questions and Answers

Which structure is responsible for selecting muscle groups?

  • Upper motor neurons
  • Basal ganglia (correct)
  • Cerebellum
  • Thalamus

Which structure acts as a conductor and comparator in motor control?

  • Basal ganglia
  • Thalamus
  • Cerebellum (correct)
  • Upper motor neurons

Which structure is responsible for intentional movements?

  • Cortical motor control centres (correct)
  • Brainstem motor control centres
  • Motor interneurons
  • Central pattern generators

Which type of movement is generated by central pattern generators?

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

Which reflex is associated with a lesion in the lower motor neuron?

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

Which descending pathway is responsible for directing head and eye movements?

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

Which area of the brain represents the motor homunculus?

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

Which part of the brain is responsible for motor control?

<p>Frontal lobe (A)</p> Signup and view all the answers

What are the two main structures involved in motor learning?

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

Which descending pathways are responsible for voluntary motor control?

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

Which descending pathways are responsible for involuntary motor control?

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

Which part of the brain is responsible for coordinating movement and balance?

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

Which part of the brain is responsible for regulating automatic movements?

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

What are common signs of impairment in the motor control system?

<p>Tremors and muscle rigidity (C)</p> Signup and view all the answers

Which artery supplies the medial part of the frontal lobes including the leg area of the motor cortex?

<p>Anterior Cerebral artery (B)</p> Signup and view all the answers

What is the term for the loss or impairment of the ability to make decisions or act independently?

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

Which area of the brain is responsible for somatosensory afferents?

<p>Area 5 (C)</p> Signup and view all the answers

Which area of the brain is involved in planning and decision making?

<p>Prefrontal cortex (A)</p> Signup and view all the answers

What is the term for the inability to carry out purposeful movements in the absence of paralysis or paresis?

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

What type of apraxia is characterized by difficulty in the sequencing and execution of movements?

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

What term is used to describe sustained muscle contractions, usually producing twisting and repetitive movements or abnormal postures or positions?

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

Which part of the brain acts as a conductor and comparator in the hierarchial motor control system?

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

What is the main function of the basal ganglia in the motor control system?

<p>Selector of muscle groups (A)</p> Signup and view all the answers

Which part of the brain is responsible for the representation of the motor cortex?

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

What are the actions associated with intentional movements?

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

Which part of the brain plays a role in the learning of motor control?

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

What is the main function of the brainstem motor control centres?

<p>Actions - intentional movements (B)</p> Signup and view all the answers

What is the role of the cortical motor control centres in the motor control system?

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

What are the common signs of impairment in the motor control system?

<p>Twitching of muscles (C)</p> Signup and view all the answers

What is the function of central pattern generators in the motor control system?

<p>Actions - intentional movements (A)</p> Signup and view all the answers

Which muscles are activated when standing still?

<p>Extensor muscles (A)</p> Signup and view all the answers

Which muscles are activated when walking?

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

Which type of movement is considered a stereotypic movement?

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

What happens when the central nervous system is intact?

<p>Walking becomes automatic (B)</p> Signup and view all the answers

Which part of the face is bilaterally innervated by the facial nerve?

<p>Upper part (A)</p> Signup and view all the answers

Which condition is characterized by weakness of the contralateral lower part of the face?

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

What is the term for sustained facial palsy affecting all the muscles on one side of the face?

<p>Lower motor neurone (B)</p> Signup and view all the answers

What can activate the lower part of the face in someone with an upper mechanism facial nerve problem?

<p>Cracking a joke (C)</p> Signup and view all the answers

Which pathway is responsible for sending tracks to the neck and upper limbs, but not the lower limbs?

<p>Cortical spinal tract (C)</p> Signup and view all the answers

What is the main role of the red nucleus pathway?

<p>Activating extensor muscles (D)</p> Signup and view all the answers

What is one possible explanation for why someone with a chronic stroke may have their arm flexed up?

<p>Damage to the cortical spinal tract (C)</p> Signup and view all the answers

What is the difference between an extensive response and a flexion response in terms of prognosis?

<p>An extensive response is worse than a flexion response (A)</p> Signup and view all the answers

Which area of the brain is responsible for neglect, where an individual can perceive but not attend?

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

What symptom is characteristic of a Jacksonian seizure?

<p>Spread of symptoms going down one arm (B)</p> Signup and view all the answers

Which area of the brain is involved in planning and decision making?

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

Which area of the brain receives information that gives a sense of what's happening around you and can result in neglect when damaged?

<p>Posterior cortex (A)</p> Signup and view all the answers

Which part of the brain is responsible for receiving sensory input and providing feedback to activate muscles for movement?

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

What is the main cause of numbness and unsteadiness in the feet and legs, as described in the text?

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

Which part of the brain is responsible for controlling movements of the hand and face?

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

What is the term for weakness in both legs due to a lesion in the brain?

<p>Bilateral leg paresis (B)</p> Signup and view all the answers

What is the main function of the supplementary motor area (SMA)?

<p>To plan and sequence complex movements (B)</p> Signup and view all the answers

What happens in the brain when someone performs a mental rehearsal of a complex movement?

<p>Only the supplementary motor area (SMA) is activated (A)</p> Signup and view all the answers

What is the term used to describe the phenomenon where a tremor stops or changes speed in response to specific tasks?

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

What does the activation of the SMA before the motor cortex suggest about movements?

<p>Movements have some degree of volitional control (B)</p> Signup and view all the answers

Which term is used to describe a problem in the integration between the sensory and motor pathways?

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

What happens if the time between the gun firing and an athlete's reaction is less than 0.1 seconds?

<p>The athlete assumes the gun went off shortly before their reaction (C)</p> Signup and view all the answers

What is the connection between the sensory and motor areas not fully understood?

<p>How they all fully integrate (D)</p> Signup and view all the answers

What is the term used to describe sustained muscle contractions that produce twisting and repetitive movements or abnormal postures?

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

What is the term used to describe the loss or impairment of the ability to make decisions or act independently?

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

What is the term used to describe the inability to carry out purposeful movements in the absence of paralysis or paresis?

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

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