Muscles of Tongue and Palate

Question 1

Genioglossus

Answer 1

O: mental spine of mandible
I: dorsum of tongue and hyoid
A: depresses and protrudes tongue
I: CN XII (hypoglossal nerve)

Question 2

Hyoglossus

Answer 2

O: body and greater horn of hyoid
I: lateral and inferior aspect of tongue
A: depresses and retracts tongue
I: CN XII (hypoglossal nerve)

Question 3

Styloglossus

Answer 3

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

Question 4

Palatoglossus

Answer 4

O: palatine aponeurosis of soft palate
I: lateral aspect of the tongue
A: elevates posterior tongue and depresses palate
I: CNXII and CN X

Question 5

Levator veli palatini

Answer 5

O: temporal bone and auditory process
I: palatine aponeurosis
A: elevates palate during swallowing
I: CN X

Question 6

Tensor veli palatini

Answer 6

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

Question 7

Palatopharygeus

Answer 7

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

Question 8

Musculus uvulae

Answer 8

O: nasal spine and palatine aponeurosis
I: mucosa of uvula
A: shortens, elevates and retracts uvula
I: CN X