Muscles of Tongue and Palate Flashcards
Genioglossus
O: mental spine of mandible
I: dorsum of tongue and hyoid
A: depresses and protrudes tongue
I: CN XII (hypoglossal nerve)
Hyoglossus
O: body and greater horn of hyoid
I: lateral and inferior aspect of tongue
A: depresses and retracts tongue
I: CN XII (hypoglossal nerve)
Styloglossus
O: styloid process and stylohyoid ligament
I: lateral and inferior aspect of tongue
A: retracts tongue and draws it up for swallowing
I: CN XII
Palatoglossus
O: palatine aponeurosis of soft palate
I: lateral aspect of the tongue
A: elevates posterior tongue and depresses palate
I: CNXII and CN X
Levator veli palatini
O: temporal bone and auditory process
I: palatine aponeurosis
A: elevates palate during swallowing
I: CN X
Tensor veli palatini
O: scaphoid fossa of medial pterygoid plate, spine of sphenoid and auditory tube
I: palatine aponeurosis
A: tenses soft palate and opens auditory tube during swallowing and yawning
I: CN V
Palatopharygeus
O: hard palate and superior palatine aponeurosis
I: lateral pharyngeal wall
A: tenses soft palate; pulls walls of pharynx superiorly, anteriorly, and medially during swallowing
I: CN X
Musculus uvulae
O: nasal spine and palatine aponeurosis
I: mucosa of uvula
A: shortens, elevates and retracts uvula
I: CN X
