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Questions and Answers
Which type of movement will excite the hair cells on one side and inhibit the hair cells on the other side of the utricular macula?
Which type of movement will excite the hair cells on one side and inhibit the hair cells on the other side of the utricular macula?
- Vibrational movements
- Translational movements (correct)
- Rotational movements
- Torsional movements
What happens when there is a tilt along the axis of the striola in the head?
What happens when there is a tilt along the axis of the striola in the head?
- Hair cells on one side are excited, and hair cells on the other side are inhibited (correct)
- All hair cells are equally excited
- Hair cells on both sides are inhibited
- The kinocilia orientation changes
Following damage to the vestibular hair cells, what is a likely outcome?
Following damage to the vestibular hair cells, what is a likely outcome?
- Improved balance
- Impaired vestibular function (correct)
- Enhanced vestibular function
- No effect on vestibular function
Which nerve is responsible for transferring generated potentials from the first neuron to the vestibular nuclei?
Which nerve is responsible for transferring generated potentials from the first neuron to the vestibular nuclei?
Where do impulses go after being transmitted to the vestibular areas of the cerebrum?
Where do impulses go after being transmitted to the vestibular areas of the cerebrum?
What is the function of the utricular macula in the inner ear?
What is the function of the utricular macula in the inner ear?
What does the saccular macula in the inner ear primarily contribute to?
What does the saccular macula in the inner ear primarily contribute to?
How are kinocilia oriented on the hair cells of the macula?
How are kinocilia oriented on the hair cells of the macula?
Which nerve is responsible for transmitting sensory information from the utricular and saccular maculae to the brain?
Which nerve is responsible for transmitting sensory information from the utricular and saccular maculae to the brain?
What is the main function of the maculae within the inner ear?
What is the main function of the maculae within the inner ear?
What is the function of the saccular macula?
What is the function of the saccular macula?
How does the kinocilium orientation affect the activation of hair cells?
How does the kinocilium orientation affect the activation of hair cells?
Which statement best describes the function of the utricular macula?
Which statement best describes the function of the utricular macula?
How does the activation of the vestibulocochlear nerve occur?
How does the activation of the vestibulocochlear nerve occur?
What role does Ca2+ play in the activation of hair cells in the vestibular system?
What role does Ca2+ play in the activation of hair cells in the vestibular system?
What is the function of the organ of Corti in the cochlea?
What is the function of the organ of Corti in the cochlea?
How do short fibers near the cochlea's base differ from long fibers at the end in terms of response to vibrations?
How do short fibers near the cochlea's base differ from long fibers at the end in terms of response to vibrations?
Which type of hair cells in the organ of Corti are mostly innervated by afferent nerves?
Which type of hair cells in the organ of Corti are mostly innervated by afferent nerves?
What determines how loud a sound is registered by the human ear?
What determines how loud a sound is registered by the human ear?
Which part of the inner ear is primarily responsible for balance and spatial orientation?
Which part of the inner ear is primarily responsible for balance and spatial orientation?
What is the function of the utricular macula?
What is the function of the utricular macula?
Which of the following best describes the saccular macula's function?
Which of the following best describes the saccular macula's function?
In the utricular macula, how are the kinocilia oriented?
In the utricular macula, how are the kinocilia oriented?
Which nerve is responsible for transmitting information from the maculae to the brain?
Which nerve is responsible for transmitting information from the maculae to the brain?
What is a key function of maculae in the inner ear?
What is a key function of maculae in the inner ear?
What is the function of the macula sacculi in the vestibular system?
What is the function of the macula sacculi in the vestibular system?
In which direction do kinocilia point in the saccular macula?
In which direction do kinocilia point in the saccular macula?
How is the signal generated in the hair cells of the utricular macula?
How is the signal generated in the hair cells of the utricular macula?
Which nerve transmits the signal from the hair cells to the brain in the vestibular system?
Which nerve transmits the signal from the hair cells to the brain in the vestibular system?
How do the hair cells align with respect to the kinocilium in both utricular and saccular maculae?
How do the hair cells align with respect to the kinocilium in both utricular and saccular maculae?
What is the function of the otolithic organs?
What is the function of the otolithic organs?
Where are the hair cells topped with hair bundles embedded in a gelatinous layer located?
Where are the hair cells topped with hair bundles embedded in a gelatinous layer located?
Which structure contains small calcium carbonate crystals known as otoconia?
Which structure contains small calcium carbonate crystals known as otoconia?
What type of motions does the utricle primarily detect?
What type of motions does the utricle primarily detect?
Where is the striola located within the sacculus and utricle?
Where is the striola located within the sacculus and utricle?
What is the orientation of the utricle within the inner ear?
What is the orientation of the utricle within the inner ear?
Which area in the saccule is specialized and contains hair cells and supporting cells?
Which area in the saccule is specialized and contains hair cells and supporting cells?
What is the name of the membrane above the gelatinous layer in the macula that contains otoconia?
What is the name of the membrane above the gelatinous layer in the macula that contains otoconia?
What is the function of kinocilia within the otolithic organs?
What is the function of kinocilia within the otolithic organs?
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