FINALS: Tongue Flashcards Preview

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Flashcards in FINALS: Tongue Deck (28):
0

A mass of striated skeletal muscle
Covered with mucous membrane

Tongue

1

Divides the tongue into right and left

Median fibrous septum

2

Tongue is attached to the 3

Styloid process
Soft palate - above
Mandible and hyoid bone - below

3

A v shaped sulcus on the upper surface of the tongue
Divides the tongue into ANT 2/3 (ORAL PART) & POST 1/3 (PHARYNGEAL PART)

Sulcus terminalis

4

A small pit at the apex of the sulcus
An embryonic remnant, marks the site of the upper end of the thyroglossal duct

Foramen cecum

5

Three types of papillae on ant 2/3

Filiform
Fungiform
Vallate

6

Post third of tongue is devoid of papillae but has

Lingual tonsil

7

A fold of mucous membrane connecting the under surface of the tongue to the floor of the mouth

Frenulum of the tongue

8

Vein seen On the lateral side of the frenulum

Deep lingual vein

9

2 types of muscles of the tongue

Intrinsic
Extrinsic

10

Confined to the tongue
Not attached to bone

Intrinsic muscles

11

Intrinsic muscles consists 3 types of fibers

Longitudinal
Transverse
Vertical

12

Nerve supply of inteinsic muscles

Hypoglossal nerve

13

Action of intrinsic muscles

Alter shape of tongue

14

Attached to bones and soft palate

Extrinsic muscles

15

4 extrinsic muscles

Genioglossus
Palatoglossus
Styloglossus
Hyoglossus

16

Nerve of extrinsic fibers

Hypoglossal nerve

17

Movts of tongue PRDRS

Protrusion
Depression
Retraction
Retraction and elevation of post third
Shape changes

18

Muscles in Protrusion

Genioglossus

19

Muscles: retraction

Styloglossus
Hyoglossus

20

Muscles: depression

Hyoglossus

21

Muscles: retraction and elevation of post 3rd

Styloglossus
Palatoglossus

22

Muscle: shape changes

Intrinsic muscles

23

Blood supply of the tongue 3

Lingual artery
Tonsilar branch of facial artery
Ascending pharyngeal artery

24

The veins of tongue drains into the

Ijv

25

Lymph drainage
Tip:
Sides of ant 2/3:
Post 3rd:

Tip: submental lymph nodes
Sides of ant 2/3: submandibular and deep cervical lymph nodes
Post 3rd: deep cervical lymph nodes

26

Sensory innervation on the ant 2/3

Lingual nerve branch of mandibular division of trigeminal nerve
CHORDA TYMPANI Branch of the Facial nerve

27

Sensory innervation of post 3rd

Glossopharyngeal nerve