Oral Cavity: Extrinsic Muscles of the Tongue

Question 1

Extrinsic Muscles attached to_ and move_

Answer 1

Bone + Soft Palate

Tongue

Question 2

`Genioglossus muscle

Answer 2

From the mandible anteriorly to the hyoid bone and the dorsum of the tongue
Protrudes tongue by pulling base forward.

Question 3

Hyoglossus muscle

Answer 3

(it’s in the name)

depresses & retracts (after a high)

Question 4

Styloglossus muscle

Answer 4

(it’s in the name)
elevates & retracts (style high, retract old)
forms through for swallowing

Question 5

• anterior 2/3 tongue -

Innervation:

Answer 5

anterior 2/3 of tongue
sensory - CN V3 / Mandibular N via Lingual N
taste - CN VII / Facial N via Chorda Tympani N (parasympathetic)
motor - CN XII / Hypoglossal N

Question 6

Palatoglossus Muscle

Answer 6

(it’s in the name)
elevates posterior 1/3 tongue
palatoglossal arch

Question 7

• posterior 1/3 tongue -

Answer 7

posterior 1/3 of tongue
sensory - CN IX / Glossopharyngeal N
tastes - CN IX / Glossopharyngeal N
motor - CN X / Vagus

Question 8

Genioglossus m
Hyoglossus m
Styloglossus m
Innervation:

Answer 8

CN XII / Hypoglossal N

Question 9

Pataloglossus Muscle

Innervation:

Answer 9

CN X / Vagus N