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

What stimuli does the utricle primarily detect?

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

How do otolith organs contribute to the detection of movement?

<p>By detecting changes in head position (A)</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 (D)</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 (D)</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 (C)</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 (D)</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 (D)</p> Signup and view all the answers

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

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

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

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

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

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

Why are otolith organs important in the vestibular system?

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

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

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

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

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

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