The tongue

Question 1

Oral cavity Proper

Answer 1

The space between the teeth and tongue

Question 2

Vestibule

Answer 2

Gap between teeth and cheek

Question 3

What do lips bind to?

Answer 3

the oral fissure

Question 4

What are lips innervated by?

Answer 4

sensory fibres, hence they are very tactile organs

Question 5

Lips in dogs, horse and sheep

Answer 5

soft and flexible

Question 6

Lips in cows and pigs

Answer 6

stiff and less mobile

Question 7

What is the outer layer of the lips?

Answer 7

stratified squamous epithelium

Question 8

What is the middle layer of the lips?

Answer 8

Skeletal muscle

Question 9

What is the inner layer of the lips?

Answer 9

Labial gland

Question 10

Where is the hard palate?

Answer 10

the rostral part of the root mouth

Question 11

Where is the soft palate?

Answer 11

The caudal part of the root mouth

Question 12

What are muscles covered by?

Answer 12

musculomucousal membrane

Question 13

Functions of the Hard Palate?

Answer 13

It is keratinised for protection and has ridges to help grip food

Question 14

Palatine bone

Answer 14

Aids in the senses of smell and taste

Question 15

Vomeronasal organ

Answer 15

organ behind the nose

Question 16

Incisive papilla

Answer 16

Lump at the top of the mouth, opens into the incisive duct and covered in keratinised epithelium and strengthened by cartilage

Question 17

What are the 3 layers of the hard palate

Answer 17

Mixed gland, Palatine bone and stratified squamous epithelium

Question 18

Tongue

Answer 18

Core muscle covered by stratified squamous epithelium

Question 19

where is the Lyssa

Answer 19

Line down the centre of the tongue, it is surrounded by dense connective tissue

Question 20

Intrinsic Muscles in Tongue

Answer 20

muscle fibres orientated in 3 directions longitudinal, transverse and vertical- forms the proper position of the tongue

Question 21

Extrinsic tongue muscles

Answer 21

Attaches the tongue to other structures

Question 22

Intrinsic

Answer 22

Muscles lie entirely within the tongue

Question 23

3 extrinsic muscles

Answer 23

Stylo-glossus, Hyo-glossus and Genio-glossus

Question 24

how are Intrinsic muscles orientated

Answer 24

have muscle fibres orientated in 3 directions that allow it to sit in its normal (proper) position

Question 25

Stylo-glossus

Answer 25

long, thin muscle that retracts and elevates the tongue

Question 26

Hyo-glossus

Answer 26

Wide and flat muscle- retracts and depresses the tongue

Question 27

Genio-glossus

Answer 27

Fan shaped muscle, caudal and rostral fibres protrude and retract the apex

Question 28

what are Lingual papillae

Answer 28

small structures on the upper surface of the tongue

Question 29

What are the two types of lingual papillae?

Answer 29

Mechanical and Gustatory

Question 30

4 types of mechanical papillae

Answer 30

Filiform, Conical, Marginal and Lenticular

Question 31

name 3 types of Gustatory papillae

Answer 31

Fungiform, Vallate and Foliate

Question 32

Filiform

Answer 32

Hair-like structures and grips food

Question 33

Conical

Answer 33

Larger and less frequent, provides traction for food

Question 34

Marginal

Answer 34

Newborn carnivores and piglets, aids in suckling

Question 35

Lenticular

Answer 35

hard and horny due to keratinisation

Question 36

Fungiform

Answer 36

Mushroom shaped

Question 37

Filiform

Answer 37

hair like structures on the dorsal surface of the tongue

Question 38

vallate

Answer 38

between the body and root of the tongue, has large circular projections surrounded by a deep groove

Question 39

Foliate

Answer 39

at the same level but on the edges of the tongue, found in horses and pigs

Question 40

How is the motor part of the tongue innervated?

Answer 40

Hypoglossal nerve

Question 41

How is the Sensation part of the Rostral part of the sensory tongue innervated

Answer 41

lingual nerve, branch of mandibular division

Question 42

How is the Caudal part of the sensory tongue innervated

Answer 42

Taste and general sensation, Glossopharyngeal nerve and has additional innervation from the vagal nerve

Question 43

What is the vomeronasal organ responsible for?

Answer 43

Semiochemical pheromone detection

Question 44

How is the Taste part of the Rostral part of the sensory tongue innervated

Answer 44

The facial nerve