Muscles that Move the Tongue

Question 1

Mobility of the tongue is aided by its attachments to the:

Answer 1

mandible, styloid process and hyoid bone

Question 2

What are the two types of muscles that move the tongue?

Answer 2

Extrinsic: originates outside the tongue
Intrinsic: originates and inserts within tongue

Question 3

How many extrinsic muscles that move the tongue are there?

Answer 3

4

Question 4

What is the origin of the genioglossus?

Answer 4

mandible

Question 5

What is the insertion of the genioglossus

Answer 5

undersurface of the tongue and hyoid bone

Question 6

What are the actions of the genioglossus

Answer 6

depresses and protracts tongue

Question 7

What is the origin of the styloglossus

Answer 7

styloid process of temporal bone

Question 8

What is the insertion of the styloglossus

Answer 8

side and undersurface of tongue

Question 9

What are the actions of the styloglossus

Answer 9

elevates and retracts tongue

Question 10

What is the origin of the hyoglossus

Answer 10

greater horn and body of hyoid

Question 11

What is the insertion of the hyoglossys

Answer 11

side of tongue

Question 12

What are the actions of the hyoglossus

Answer 12

depresses and draws down the sides of tongue

Question 13

What is the origin of the palaglossus

Answer 13

anterior surface of soft palate

Question 14

what is the insertion of the palatoglossus

Answer 14

side of the tongue

Question 15

What are the actions of the palatoglossus

Answer 15

elevates posterior portion of tongue and draws soft palate down on tongue

Question 16

extrinsic and intrinsic muscles of the tongue are innervated by which nerve?

Answer 16

hypoglossal CNXII

Question 17

What muscle of the tongue is not innervated by CNXII? What is it innnervated by?

Answer 17

palatoglossus innervated by Vagus CNX