Vestibular System and Motor Control Prof. Mahmoud Samir Mohamed
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Questions and Answers

What is the main function of the semicircular canals in the vestibular system?

  • To act as angular accelerometers (correct)
  • To provide information about body position relative to gravity
  • To detect linear acceleration or movement of the head in a straight line
  • To stabilize the eyes during head movements

    • Which of the following is not a component of the peripheral vestibular system?

  • The semicircular canals
  • The eighth cranial nerve
  • The vestibular nuclei (correct)
  • The sensory receptors

    • What is the primary role of the vestibular system in motor control?

  • To provide proprioceptive feedback for muscle control
  • To stabilize the eyes and maintain postural stability (correct)
  • To coordinate complex voluntary movements
  • To integrate sensory information for balance and spatial orientation

    • Which of the following vestibular receptors provides information about linear acceleration or movement of the head in a straight line?

    <p>The saccule</p> Signup and view all the answers

    How do abnormalities in the vestibular system typically manifest?

    <p>Sensations of dizziness, unsteadiness, and problems with visual focus and balance</p> Signup and view all the answers

    What is the primary function of the vestibular system's static and dynamic components?

    <p>To provide information about head position and movement</p> Signup and view all the answers

    What is the main function controlled by the semicircular canals?

    <p>Sensing head rotation and angular accelerations</p> Signup and view all the answers

    Which part of the vestibular system detects linear acceleration, in addition to its static functions?

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

    Where do a certain portion of the vestibular sensory receptors directly go to, apart from the cerebellum?

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

    Which nucleus receives input from the utricle, semicircular canals, cerebellum, and spinal cord?

    <p>Lateral Vestibular Nucleus</p> Signup and view all the answers

    Which nucleus has outputs to the medial vestibulospinal tract with connections to the cervical spinal cord?

    <p>Medial Vestibular Nucleus</p> Signup and view all the answers

    Which part of the vestibular system plays an important role in coordinating interactions between head and eye movements?

    <p>Medial Vestibular Nucleus</p> Signup and view all the answers

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