Hyoid Bone and Oral Phase in Swallowing Process
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Questions and Answers

What is the role of the orbicularis oris muscle during the oral preparatory phase of swallowing?

  • To prevent pooling of the bolus in the lateral and anterior sulci
  • To elevate the posterior tongue to prevent fluid from entering the pharynx
  • To maintain oral competency during bolus preparation and swallowing (correct)
  • To soften the solid bolus by mixing it with saliva

How does contraction of the thyroarytenoid (TA) muscle affect pitch?

  • It raises the pitch by decreasing tension in the vocal cover
  • It raises the pitch by increasing length and tension in the vocal cords
  • It has no effect on pitch
  • It lowers the pitch by decreasing tension in the vocal cover (correct)

Which muscle works synergistically with the orbicularis oris during the oral preparatory phase?

  • Posterior tongue
  • Hyoglossus
  • Buccinators (correct)
  • Styloglossus

What is the main function of mastication during the oral preparatory phase?

<p>To soften and reduce the size of the solid bolus (A)</p> Signup and view all the answers

Which group of muscles facilitates the movement and positioning of the bolus in preparation for swallowing?

<p>Extrinsic tongue muscles (C)</p> Signup and view all the answers

What happens to the pitch when there is a strengthening of thyroarytenoid (TA) muscle contraction?

<p>Pitch increases (C)</p> Signup and view all the answers

What is the primary risk associated with chronic aspiration that is left untreated?

<p>Pulmonary dysfunction (C)</p> Signup and view all the answers

Which assessment involves a radiological procedure that provides dynamic imaging of the upper aerodigestive tract during all four stages of swallowing?

<p>Video Fluoroscopy Swallow Study (A)</p> Signup and view all the answers

What is the primary purpose of conducting a Flexible Endoscopic Evaluation of Swallowing?

<p>To directly assess soft tissue anatomy and mucosa (A)</p> Signup and view all the answers

Which evaluation method involves the placement of a catheter containing pressure sensors through the pharynx and esophagus to capture pressure readings during liquid bolus swallows?

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

What is the purpose of a Clinical Swallow Examination conducted by an SLP?

<p>To guide diet/fluid recommendations (B)</p> Signup and view all the answers

Which assessment examines the effects of compensatory strategies such as postural changes, sensory modifications, and swallowing maneuvers?

<p>Video Fluoroscopy Swallow Study (D)</p> Signup and view all the answers

What is the relationship between bolus volume and the duration of UES opening and airway closure?

<p>As bolus volume increases, the duration of UES opening and airway closure increases (B)</p> Signup and view all the answers

Which factor is commonly associated with impaired swallowing (Dysphagia) in patients with Head and Neck Cancer (HNC)?

<p>Tumor site and size (D)</p> Signup and view all the answers

What are the potential negative consequences of dysphagia related to laryngeal function?

<p>Laryngeal Penetration and Aspiration (A)</p> Signup and view all the answers

How is laryngeal penetration defined in the context of dysphagia?

<p>Entry of food/liquid material into the airway above the true vocal cords (A)</p> Signup and view all the answers

What can cause airway invasion before the pharyngeal swallow?

<p>Reduced tongue control during the oral stages of swallowing (D)</p> Signup and view all the answers

When does aspiration occur during swallowing?

<p>After the pharyngeal swallow (A)</p> Signup and view all the answers

What is the main factor determining the force available to drive phonation?

<p>Elastic recoil in the chest wall and diaphragm (B)</p> Signup and view all the answers

What happens if the gap between the medial surface edges of the vocal folds is too wide?

<p>Breathy or aphonic voice (C)</p> Signup and view all the answers

What type of phonation is characterized by a favorable configuration of the glottis with nearly parallel vocal folds?

<p>Modal phonation (C)</p> Signup and view all the answers

What happens if the vocalis muscle is atrophic or paralyzed?

<p>Medial surface of vocal fold becomes convex (D)</p> Signup and view all the answers

How are changes in vocal fold length and tension used to control voice inflections?

<p>By adjusting fundamental frequency (C)</p> Signup and view all the answers

What physical property of the vocal folds is crucial for normal modal phonation?

<p>Free undulation of mucosa (B)</p> Signup and view all the answers

Which phase of swallowing involves bolus transport through the hypopharynx into the proximal esophagus?

<p>Pharyngeal phase (A)</p> Signup and view all the answers

What muscle is responsible for closing the velopharyngeal port during the oral phase of swallowing?

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

Which muscle elevates and retracts the velum during the pharyngeal phase to prevent nasal regurgitation?

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

What is the physiological importance of the pharyngeal phase of swallowing?

<p>Airway protection (A)</p> Signup and view all the answers

Which muscle relaxes during the swallow to allow opening of the upper esophageal sphincter?

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

What occurs as a result of pharyngeal swallow triggering?

<p>Elevation and retraction of the velum (A)</p> Signup and view all the answers

Which muscle contracts to provide an opening for the bolus to be propelled into the pharynx during the oral phase?

<p>Hyoglossus muscle (A)</p> Signup and view all the answers

Airway protection during swallowing involves two dimensions. What are they?

<p>Elevation and closure (A)</p> Signup and view all the answers

What closes at the true vocal folds to prevent aspiration during swallowing?

<p>&quot;Larynx at true vocal folds&quot; (B)</p> Signup and view all the answers

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