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Velar Muscles
AS&RM
| Question | Answer |
|---|---|
| What is the course of the Levator Veli Palatini? | runs from the petrous portion of temporal bone, goes inferior, medial, and anterior to insert into the mid-portion of the velum, forming a sling with the left and right muscles |
| What is the function of the Levator Veli Palatini? | elevates and retracts muscles (when swallowing and non-nasal sounds) and adds mass |
| What is the course of the tensor veli palatini? | From the upper portion of the pterygoid fossa and eustachian tube to converge/end in tensor tendon which winds around hamulus |
| What muscle helps form the palatal aponerousis? | the tensor veli palatini |
| What is the palatal aponeurosis? | a broad, flat tendon between the soft and hard palate |
| What is the function of the tensor veli palatini? | may tense the velum during swallowing, opens the eustachian tube, little to no speech significance |
| What is the course of the Uvular muscle? | From palatal aponeurosis and goes posterior and inferior to insert into uvula |
| What does the Uvular muscle help form? | the dorsal/nasal surface of the velum (dorsal to levator sling) |
| What is the function of the Uvular muscle? | creates bulge on posterior part of nasal surface of velum, stiffens and fills gap in soft palate and posterior Pharyngeal wall to help with oral speech sounds |
| Which velar muscle is completely intrinsic? | the Uvular muscle |
| What is another name for the Uvular muscle? | the musculus uvulae |
| What is the course of the Palatoglossus Muscle? | Originates at velum, inferior through anterior faucial pillar to insert into lateral aspects of tongue |
| What muscle is the palatoglossus Muscle an antagonist to? | the Levator Veli palatini |
| Where is the palatoglossus muscle located? | the anterior faucial pillar |
| What is the function of the palatoglossus muscle? | depress the velum, forces bolus backwards during swallowing; for speech, may lower velum for nasal consonants or raise the tongue /k, g, v/ |
| What is the course of the palatopharyngeus muscle? | originates at the velum (posterior to palatoglossus) and courses through the posterior faucial pillars |
| What are the two parts of the palatopharyngeus muscles? | horizontal and vertical fibers |
| What is the function of the horizontal fibers of the palatopharyngeus muscles? | sphincter action of lateral and posterior Pharyngeal walls pulling medially |
| What is the function of the vertical fibers of the palatopharyngeus muscles? | lowers the velum, elevates the larynx |
| What is the function of the palatopharyngeus muscles? | produces oralized sounds, vertical fibers may help in swallowing |
| What muscle is a synergist to the palatoglossus? | the palatopharyngeus muscle |
| What is the nasal sound physiology of velopharyngeal closure? | velum is maintained and lowered |
| What is the oral sound physiology of the velopharyngeal closure? | velum must elevate and close nasal cavity from oral cavity |
Created by:
hrshook0104
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