Muscles Of The Tongue

Question 1

Dorsum

Answer 1

Tongue surface

Question 2

Front to Back

Answer 2

tip
blade
back

Question 3

Median Sulcus

Answer 3

divides dorsum in half

Question 4

Sulci Terminalis

Answer 4

runs diagonally foramen cecum

Question 5

Papilae

Answer 5

taste buds, posterior third

Question 6

Lingual Frenum

Answer 6

anchors tongue to floor of mouth

Question 7

Intrinsic

Superior Longitudinal Muscle

Answer 7

unpaired
origin\insertion - near surface runs back to front
action - shorten tongue, raise the tip

Question 8

Intrinsic

Inferior Longitudinal Muscle

Answer 8

unpaired
origin/insertion - under surface, back to front
action - shorten tongue and lower the tip

Question 9

Intrinsic

Transverse Muscle

Answer 9

origin/insertion - medial sulcus to lateral edges of tonge

action - narrows and elongates tonge

Question 10

Intrinsic

Vertical Muscle

Answer 10

origin - on the surface
insertion - undersurface
action - flattening the tongue

Question 11

Extrinsic

Genioglossus Muscle

Answer 11

origin - posterior, midline of mandible
insertion - fibers fan out into body of tongue
action - if tongue is out pulls it in, if its up pulls it down
pull toward mandible origin

Question 12

Extrinsic

Styloglossus Muscle

Answer 12

origin - styloid process of temporal bone
insertion - fibers fan anteriorly/inferiorly to inferior longitudinal and hypoglossus
action - draws tongue up and back

Question 13

Extrinsic

Hypoglossus Muscle

Answer 13

origin - upper surface of hyoid
insertion - fibers go vertical to posterior half of tongue
action - retract and lower tongue

Question 14

Extrinsic

Glossopalatine (palatoglossus) Muscle

Answer 14

origin - anterior surface of soft palate
insertion - fibers go down and lateral to side of tongue
action - raise back of tongue or lower soft palate