Question
Which of the following structures are associated with dysphagia and dysarthria, except?
| A. |
Tensor veli palatini
|
| B. |
Palatopharyngeus
|
| C. |
Pharyngeal constrictor
|
| D. |
Stylopharyngeus
|
Show Answer
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Correct Answer � A
Explanation
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|
– Dysphagia (difficulty swallowing) and dysarthria (difficulty in articulating speech) are typically associated with muscles involved in the pharyngeal phase of swallowing and speech articulation.
– Palatopharyngeus, pharyngeal constrictor, and stylopharyngeus muscles play important roles in pharyngeal movement, elevation, and constriction necessary for swallowing and speech.
– Tensor veli palatini primarily functions to tense the soft palate and open the Eustachian tube; it does not significantly contribute to the motor actions involved in swallowing or speech articulation.
Reasons to rule out other options
– Palatopharyngeus is involved in elevating the pharynx and larynx during swallowing and speech.
– Pharyngeal constrictors sequentially constrict the pharyngeal walls to propel the food bolus downward during swallowing.
– Stylopharyngeus elevates and widens the pharynx to facilitate swallowing and vocal modulation.
