Tongue

Question 1

What is tongue what does it do

Answer 1

striated (skeletal) muscular organ covered by mucosa

Manipulates ingested material during mastification and swallowing

Question 2

What are the parts of the tongue and the surfaces

Answer 2

root, body, apex

superior surface called dorsum linguae and inferior surface

Question 3

What lies between the border of the body and the root

Answer 3

V shaped groove or dorsal surface called SULCUS TERMINALIS

Question 4

Features of lower surface of the tongue

Answer 4

smooth
lining mucosa

Question 5

Features of dorsal surface of tongue

Answer 5

irregular
many papillae
lingual tonsils

Question 6

The mucosa of the dorsal surface forms 4 types of papillae:

Answer 6

FILIFORM: *most numerous, conical shape, keratinized tips
* provides rough surface to aid move of food
* NO TASTE BUDS

FUNGIFORM: * rounded top part narrower base
* spread between filiform, look red bumps

FOLIATE: * parallel ridges on the side of the tongue
* diminishes with age

VALLATE: * largest papillae 1-3mm
* align in front of sulcus terminalis

Question 7

What are the 4 proper muscles of the tongue

Answer 7

superior/ inferior longitudinal muscle - constriction makes longer and thinner

vertical muscle- decrease thickness

transverse muscle