White Matter Tracts and Basal Nuclei Quiz
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Questions and Answers

What is the primary function of the association tracts in the brain?

  • Extend between cerebral hemispheres
  • Link the cerebral cortex to inferior brain regions and spinal cords
  • Regulate the initiation and termination of movements
  • Connect different regions of the cerebral cortex within the same hemisphere (correct)
  • Which part of the brain plays a key role in regulating circadian rhythms through the secretion of melatonin?

  • Thalamus
  • Epithalamus (correct)
  • Hypothalamus
  • Corpus callosum
  • What is the main function of the projection tracts in the brain?

  • Regulate muscle tones
  • Extend between cerebral hemispheres
  • Link the cerebral cortex to inferior brain regions and spinal cords (correct)
  • Connect different regions of the cerebral cortex within the same hemisphere
  • Which structure in the brain acts as the principal and final relay for incoming sensory information?

    <p>Thalamus</p> Signup and view all the answers

    What is the main function of the basal nuclei (corpus striatum)?

    <p>Regulate muscle tones</p> Signup and view all the answers

    Which part of the brainstem houses cranial nerves III and IV?

    <p>Midbrain</p> Signup and view all the answers

    Which structure in the diencephalon controls sensations related to olfactory functions?

    <p>Epithalamus</p> Signup and view all the answers

    What is a key function of the hypothalamus in addition to regulating circadian rhythms?

    <p>Directly control food and water intake</p> Signup and view all the answers

    The habenular nuclei in the epithalamus are primarily involved in which functions?

    <p>Controlling emotional behavior</p> Signup and view all the answers

    What is a key role of projection tracts in the brain?

    <p>Link cerebral cortex to inferior brain regions and spinal cords</p> Signup and view all the answers

    Which part of the brain is referred to as the 'little brain'?

    <p>Cerebellum</p> Signup and view all the answers

    What is the function of the pontine respiratory center?

    <p>Controls breathing rate</p> Signup and view all the answers

    Which cranial nerve innervates the superior rectus muscle of the eye?

    <p>Trochlear nerve</p> Signup and view all the answers

    What is the main function of the reticular activating system (RAS)?

    <p>Keeps us mentally conscious</p> Signup and view all the answers

    Which cranial nerve transmits taste sensations from the anterior two thirds of the tongue?

    <p>Facial nerve</p> Signup and view all the answers

    What is the role of the vestibulocochlear nerve (CN 8)?

    <p>Transmits balance and hearing information</p> Signup and view all the answers

    Which part of the brain contains pyramids called motor tracts?

    <p>Medulla Oblongata</p> Signup and view all the answers

    What does CN 11, the accessory nerve, primarily innervate?

    <p>Throat and neck muscles</p> Signup and view all the answers

    Which functional brain system is known as the 'emotional brain'?

    <p>Limbic System</p> Signup and view all the answers

    What is the main function of cranial nerve CN 5, the Trigeminal nerve?

    <p>Receiving touch sensations from the face, scalp, oral cavity</p> Signup and view all the answers

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