Lecture 10 hearing
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Questions and Answers

What is the primary function of the vestibular system?

  • Regulating taste perception
  • Controlling visual acuity
  • Maintaining body balance and posture (correct)
  • Enhancing olfactory sensations
  • Which reflexes are associated with the vestibular system?

  • Blink reflex
  • Vestibulo-ocular and vestibulospinal reflexes (correct)
  • Cough reflex
  • Swallowing reflex
  • Which of the following contributes to sensory ataxia?

  • Auditory system
  • Proprioceptive system (correct)
  • Olfactory system
  • Visual system
  • What kind of input does the brain receive from the peripheral vestibular system?

    <p>Afferent input only</p> Signup and view all the answers

    Which part of the brain responds to afferent input from the peripheral vestibular system?

    <p>Neural pathways in the brain</p> Signup and view all the answers

    Where does the auditory information from the cochlear nerve travel to after the brainstem?

    <p>Primary auditory cortex</p> Signup and view all the answers

    Which area of the brain is essential for understanding and interpreting auditory information?

    <p>Wernicke's area</p> Signup and view all the answers

    Which sensory system is primarily responsible for maintaining body balance and orientation?

    <p>Vestibular system</p> Signup and view all the answers

    Where do the axons of first-order sensory neurons from the vestibulocochlear nerve make contact within the ear?

    <p>Hair cells</p> Signup and view all the answers

    What is the function of the middle ear ossicles in hearing?

    <p>Transmit sound vibrations to the cochlea</p> Signup and view all the answers

    What are the sensory end organs of the static labyrinth?

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

    Which part of the vestibular system is responsible for monitoring head movement?

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

    Where does depolarization from the receptor epithelium get directed to in the vestibular system?

    <p>Bipolar nerve and ganglion</p> Signup and view all the answers

    Which term is synonymous with ampullary crest in the vestibular system?

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

    In clinical considerations, vertigo can be associated with which type of condition?

    <p>Peripheral and central</p> Signup and view all the answers

    What is the principal sensory receptor epithelium in the organ of corti known as?

    <p>Neuroepithelial cell</p> Signup and view all the answers

    Which membrane do the high frequency pressure waves created by high pitch sounds resonate in?

    <p>Basilar membrane</p> Signup and view all the answers

    What converts mechanical energy into electrical energy in the hearing process?

    <p>Hair cells</p> Signup and view all the answers

    Where do the cochlear nerve fibers make dendritic contact within the cochlear duct?

    <p>Organ of Corti</p> Signup and view all the answers

    What is responsible for bending the stereocilia on hair cells via an electromechanical force?

    <p>Sound waves</p> Signup and view all the answers

    What is the main role of the cochlea in the inner ear?

    <p>Transduces sound waves into electrical impulses</p> Signup and view all the answers

    Which nerve is responsible for the control of the auditory and vestibular systems in the inner ear?

    <p>Vestibulocochlear nerve (CN 8)</p> Signup and view all the answers

    In the middle ear, what are the three ossicles responsible for?

    <p>Conducting sound vibrations from the eardrum to the inner ear</p> Signup and view all the answers

    Which structure in the inner ear is responsible for detecting changes in head position and movement?

    <p>Semicircular canals</p> Signup and view all the answers

    What is the main function of the membranous labyrinth in the inner ear?

    <p>Contains endolymphatic fluid and houses the vestibular and cochlear systems</p> Signup and view all the answers

    What is the primary role of the vestibular nerve in the vestibulocochlear pathway?

    <p>Maintaining body balance and orientation</p> Signup and view all the answers

    Where is the primary location of the middle ear in the human body?

    <p>In the tympanic cavity of the temporal bone</p> Signup and view all the answers

    Which part of the ear is directly responsible for amplifying vibrations received by the tympanic membrane?

    <p>Malleus, incus, and stapes</p> Signup and view all the answers

    Which area of the brain processes auditory information and is responsible for understanding speech?

    <p>Primary auditory cortex</p> Signup and view all the answers

    In the auditory system, which part of the brain is essential for deciphering the meaning of sounds and language comprehension?

    <p>Wernicke's area</p> Signup and view all the answers

    What is the main function of Wernicke's area in the brain?

    <p>Comprehending language and speech</p> Signup and view all the answers

    Which part of the ear contains structures responsible for detecting changes in head position and movement?

    <p>Vestibular system</p> Signup and view all the answers

    Where does auditory information from the cochlear nerve travel to after reaching the brainstem?

    <p>Primary auditory cortex</p> Signup and view all the answers

    What does the primary somatosensory cortex primarily handle?

    <p>Touch sensations</p> Signup and view all the answers

    In the auditory system, which part of the brain distinguishes between sound frequencies and processes complex sound patterns?

    <p>Primary auditory cortex</p> Signup and view all the answers

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