oral cavity 2 - Tongue

Question 1

describe the tongue

Answer 1

muscular organ with special sense of tatse
lies in the oral cavity proper

Question 2

the anterior and posterior of the tongue is separated by a v shape called?

Answer 2

Sulcus Terminalis

Question 3

what runs outwards and forwards from midline pit called

Answer 3

Foramen Caecum

Question 4

Anterior 2/3 of tounge is what type of epithelium

Answer 4

Keratinised epithelium

Question 5

anterior 2/3 of the tongue contains

Answer 5

papillae
filiform
vallate
folliate

Question 6

what is the filiform papillae

Answer 6

found over whole anterior 2/3
gives tongue rough appearance
most numerous

Question 7

what is fungiform papillae

Answer 7

found on the tip
small red dots visible on the tongue
contain taste buds

Question 8

vallate papillae

Answer 8

largest of the papillae
only 10-12 present
found in front of sulcus Terminalis
contain numerous taste buds
salivary glands present- serous

Question 9

posterior 1/3 contains what glands

Answer 9

contains mucous secreting glands

Question 10

posterior 1/3 of tongue is covered by what type of epithelium?

Answer 10

non keratinised epithelium

Question 11

ventral surface ( under the tongue) contains (5)

Answer 11

lingual frenum - attachment of floor to mouth
fimbriated fold
deep lingual vein
sublingual fold
sublingual papillae

Question 12

the ventral surface (under the tongue) has what type of epithelium?

Answer 12

non keratinised epithelium

Question 13

nerve supply to the tongue anterior 2/3

Answer 13

lingual nerve

Question 14

nerve supply to the posterior 1/3 of tongue

Answer 14

is a sensory nerve
Glossopharyngeal nerve

Question 15

blood supply for the tongue is

Answer 15

lingual artery - supplies the complete tongue

Question 16

venous drainage for the tounge is

Answer 16

deep lingual veins

into external jugular veins

Question 17

lymphatic drainage for the tongue is

Answer 17

submandibular lymph nodes

Question 18

the surface of the posterior 1/3 of the tongue appears nodular due to the what lying below the epithelium?

Answer 18

lymphoid tissue

Question 19

the soft tissue fold which lies in the floor of the mouth on either side of the lingual frenum is called what?

Answer 19

the sublingual fold

Question 20

what is the small soft tissue elevation at the anterior end of the sublingual fold? and what opens on to the surface at this point?

Answer 20

the sublingual papilla
the submandibular duct opens

Question 21

what are the 4 basic tastes of the tongue?

Answer 21

sweet, salt, bitter , sour

Question 22

name 3 other factors which influence the various flavours of food stuff

Answer 22

texture
smell
temperature

Question 23

taste sensation is transmitted from the posterior one-third of the dorsum of the tounge by which nerve?

Answer 23

glossophanangeal (9th cranial nerve)