TOPIC 3C. Tongue, blood supply and innervation

Question 1

what is the tongue

Answer 1

muscular organ composed primarily of skeletal muscle

Question 2

where is the tongue located

Answer 2

in the oral cavity and extends into the oropharynx

Question 3

role of tongue

Answer 3

receptors for taste, temperature and pain

enhances heat loss in ca

Question 4

components of the tongue

Answer 4

apex - free
corpus - attaches to floor by frenulum
radix - root attached to hyoid bone

Question 5

sulcus mediana is in which species

Answer 5

ca

Question 6

lyssa

Answer 6

a rod shaped cartilage in ventral median plane in ca only

Question 7

torus linguae

Answer 7

prominence in ru only

Question 8

mechanical papillae

Answer 8

filiform, conical and marginal

Question 9

where are filiform papillae

Answer 9

body and apex mainly

most numerous

Question 10

where are conical papillae

Answer 10

at root, pointy tip

Question 11

where are marginal papillae

Answer 11

newborn ca and sus - aid suckling

Question 12

name the gustatory papillae

Answer 12

fungiform, vallate, foliate

lentiformes in ru

Question 13

where are fungiform

Answer 13

smooth rounded surface, apex and body

Question 14

where are vallate papillae

Answer 14

junction between body and root

Question 15

how many vallate papillae are in ca, eq, bo

Answer 15

ca - 4-6
eq - 2
bo - multiple

Question 16

where are foliate papillae

Answer 16

lateral margins of the tongue in parallel grooves

Question 17

what species are lentiformis papillae in

Answer 17

ru

Question 18

name the intrinsic muscles of the tongue

Answer 18

fibra longitudinales supf and prof
fibrae transversae
fibrae perpendicularis

Question 19

name the extrinsic muscles of the tongue

Answer 19

m. styloglossus
m. hyoglossus
m. geniohyoid
m. mylohyoid
m. sternohyoid
m. genioglossus

Question 20

name the artieries and veins that supply the tongue

Answer 20

a and v lingualis - a and v profunda linguae
a sublingualis
arcus hyoideus
a submentalis - r submentalis

Question 21

what sensory nerves innervate the tongue

Answer 21

n lingualis

chorda tympani of n facialis

Question 22

what parasympathetic nerves innervate the tongue

Answer 22

n glossopharyngeus
n vagus
n hypoglossus

Question 23

which muscles of the tongue does n hypoglossus innervate

Answer 23

m. styloglossus
m. hyoglossus
m. genioglossus