Ultrasound in Speech Therapy
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Questions and Answers

What is the main limitation of using markers or their attached wires to track fleshpoints during speech?

  • They are not visible during ultrasound imaging
  • They are only suitable for tracking 2D movements
  • They require radiation exposure
  • They may interfere with natural speech (correct)

    • What is the frequency of the ultrasound wave used in imaging the tongue?

  • 10 MHz
  • 1 MHz (correct)
  • 1 kHz
  • 100 kHz

    • What is the advantage of using X-ray Microbeam to track articulatory movements?

  • It can image the tongue tip and epiglottis accurately
  • It allows for rapid and accurate tracking of articulatory movements (correct)
  • It is a low-cost procedure
  • It is a non-invasive procedure

    • What is the limitation of using ultrasound imaging to study articulation?

    <p>It cannot image the tongue tip and epiglottis accurately</p> Signup and view all the answers

    What is the purpose of using reference points in X-ray Microbeam tracking?

    <p>To compute the distance between pellets and stable reference points</p> Signup and view all the answers

    What is a disadvantage of using X-ray Microbeam to track articulatory movements?

    <p>It exposes subjects to radiation</p> Signup and view all the answers

    What is a limitation of Electromagnetic Midsagittal Articulograph (EMMA) in terms of data collection?

    <p>It can only collect data at midline</p> Signup and view all the answers

    What is an advantage of Electropalatography (EPG) in articulation analysis?

    <p>It can be used in conjunction with other instruments</p> Signup and view all the answers

    What is a limitation of Optotrack in terms of its use?

    <p>It is limited to external use and cannot be used inside the mouth</p> Signup and view all the answers

    How does Electromagnetic Midsagittal Articulograph (EMMA) track fleshpoint movement?

    <p>By measuring the movement of small receiver coils through alternating magnetic fields</p> Signup and view all the answers

    What is an advantage of Optotrack in articulation analysis?

    <p>It can track movement of the lips and jaw in three-dimensional space</p> Signup and view all the answers

    How does Electropalatography (EPG) generate a signal?

    <p>When the tongue touches a transducer embedded in a palatal prosthesis</p> Signup and view all the answers

    What is the primary function of the velum during speech?

    <p>To regulate airflow between the nasal and oral cavities</p> Signup and view all the answers

    What is the result of too much air flowing from the larynx into the nasal cavity?

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

    What is the cause of oral consonants being produced as nasal consonants?

    <p>All of the above</p> Signup and view all the answers

    What is the effect of a blocked passage in the nasal cavity during speech?

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

    What is the term for the inadequate closure of the nasal cavity during speech?

    <p>Velopharyngeal incompetence</p> Signup and view all the answers

    What is the result of the velum remaining raised and not opening adequately during speech?

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

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