Balance: Otolith Organs Orientation
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Questions and Answers

What is the main function of the utricle?

  • Detect angular acceleration
  • Detect changes in head position from an upright position (correct)
  • Detect changes in head position from a recumbent position
  • Detect linear acceleration

    • What is the function of the dark cells surrounding the utricle and saccule?

  • Produce endolymph (correct)
  • Detect changes in linear acceleration
  • Secrete hormones for balance
  • Detect changes in head position

    • Why do persons or animals without otolith organs or defective otoliths have poorer abilities to sense motion and orientation to gravity?

  • Lack of hair cells in the semicircular canals
  • Impaired detection of linear acceleration
  • Absence of structures sensitive to gravity (correct)
  • Inability to detect angular acceleration

    • In which direction do the otolith organs, specifically the saccule, detect changes in head position?

    <p>From a recumbent position</p> Signup and view all the answers

    What stimuli does the utricle primarily detect?

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

    How do otolith organs contribute to the detection of movement?

    <p>By detecting changes in head position</p> Signup and view all the answers

    What is the main function of the utricle and saccule in the context of the otolith organs?

    <p>Detecting linear acceleration and head tilts</p> Signup and view all the answers

    Which type of movement would excite hair cells on one side while inhibiting hair cells on the other side?

    <p>Tilting along the axis of the striola</p> Signup and view all the answers

    How do head tilts relate to certain accelerations in terms of otolith organs?

    <p>Head tilts mimic certain accelerations</p> Signup and view all the answers

    What is the impact of damage to the vestibular hair cells on vestibular function?

    <p>Causes imbalance in vestibular function</p> Signup and view all the answers

    Where are the generated potentials transferred from the first neuron in the vestibular pathway?

    <p>To the vestibular nuclei inside rhombencephalon</p> Signup and view all the answers

    What will impair vestibular function if damaged according to the text?

    <p>Damage to the vestibular nuclei</p> Signup and view all the answers

    What is the main function of the utricle in the vestibular system?

    <p>Transducing head position information</p> Signup and view all the answers

    What is the function of dark cells in the auditory system?

    <p>Producing mucus for lubrication</p> Signup and view all the answers

    Why are otolith organs important in the vestibular system?

    <p>Help in maintaining balance during static positions</p> Signup and view all the answers

    In what orientation are the otolith organs positioned in the vestibular system?

    <p>Horizontal orientation</p> Signup and view all the answers

    What is the primary function of the saccule in the vestibular system?

    <p>Detecting linear acceleration</p> Signup and view all the answers

    Which statement accurately describes the importance of the otolith organs?

    <p>Essential for head position sensing and balance control</p> Signup and view all the answers

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