Muscles & Papillae of the Tongue

Question 1

Intrinsic Tongue Muscles (4 types)

Answer 1

1. Superior longitudinal
2. Transverse
3. Vertical
4. Inferior longitudinal

Question 2

What is the purpose of the intrinsic tongue muscles?

Answer 2

shape the tongue

Question 3

Innervation of the intrinsic tongue muscles?

Answer 3

12th cranial nerve (motor) and hypoglossal nerve (XII)

Question 4

Blood supply of intrinsic tongue muscles?

Answer 4

lingual artery

Question 5

Extrinsic Tongue Muscles (3 types)

Answer 5

1. Genioglossus: protrudes tongue
2. Styloglossus: retracts tongue
3. Hyoglossus: depresses tongue

Question 6

What is the purpose of the extrinsic tongue muscles?

Answer 6

moves/controls position of the tongue

Question 7

Innervation of the extrinsic tongue muscles?

Answer 7

12th cranial nerve (motor) or hypoglossal nerve (XII)

Question 8

Blood supply of extrinsic tongue muscles?

Answer 8

lingual artery

Question 9

Foliate papillae purpose?

Answer 9

contains taste buds

Question 10

Circumvallate papillae purpose?

Answer 10

10-14, contain taste buds and associated with ducts of Von Ebner’s glands (large)

Question 11

Fungiform papillae purpose?

Answer 11

fewer, contain taste buds, red, mushroom-shaped

Question 12

Filliform papillae purpose?

Answer 12

** MOST NUMEROUS BUT DO NOT CONTAIN TASTE BUDS **

keratinized tissue; gives tongue “velvety” texture; associated with geographic and hairy tongue

Question 13

Folliate Lingual papillae purpose?

Answer 13

located on lateral surface (side) of the tongue, some contain taste buds

Question 14

*Sulcus Terminalis purpose?

Answer 14

separation of 1/3 posterior and 2/3 anterior portions of the tongue with the foramen cecum at the point