Mouth and Teeth

Question 1

what is an important site of muscle attachment for the mouth

Answer 1

basihyoid bone

Question 2

what are the cheek pouches called

Answer 2

buccal vestibule

Question 3

what is unique about dentition in ruminants

Answer 3

dental pad - acts like a cutting board

Question 4

T/f incisive papillae are in all species

Answer 4

T

Question 5

T/f buccal papillae are in all species

Answer 5

F (ruminants only)

Question 6

What does heterodont mean

Answer 6

different teeth shapes

Question 7

What does homodont mean

Answer 7

All teeth are the same shape

Question 8

What does diphyodont mean

Answer 8

Two sets of teeth (baby/deciduous and adult/permanent)

Question 9

What does polyphyodont mean

Answer 9

Continuous replacement of teeth

Question 10

Are most mammals diphyodont or polyphyodont

Answer 10

diphyodont

Question 11

What are brachyodont teeth

Answer 11

low crowned teeth (root > crown)

Question 12

What are hypsodont teeth

Answer 12

high crowned (crown > root)

Question 13

What are examples of brachyodont teeth

Answer 13

carnivore teeth, horse deciduous incisors, pig teeth besides the tusk, ruminant incisors

Question 14

What are examples of hypsodont teeth

Answer 14

Tusk, ruminant cheek teeth, all permanent horse teeth, rabbit teeth

Question 15

What are bunodont teeth

Answer 15

rounded cusps (think blunt)

Question 16

What are lophodont

Answer 16

sharp-edged ridged teeth

Question 17

What does anelodont mean

Answer 17

Limited teeth growth, develop roots

Question 18

What is elodont

Answer 18

Continuous growth, no roots

Question 19

Describe the growth of rabbit teeth

Answer 19

Elodont (need to have them clipped)

Question 20

What is the difference between successional and non-successional teeth

Answer 20

Successional are deciduous teeth followed by permanent teeth (ex. incisors, canine, premolars) whereas non-successional teeth are permanent teeth that do not grow after deciduous teeth (ex. molars)

Question 21

What is the tusk

Answer 21

Canine tooth in pigs

Question 22

What are peg teeth

Answer 22

Second caudal row of incisors in lagomorph

Question 23

What are wolf teeth

Answer 23

Rudimentary upper first premolar in horses

Question 24

What are needle teeth

Answer 24

The deciduous third incisor and canine in piglets

Question 25

What modified teeth make up the carnassials

Answer 25

4th premolar and 1st molar

Question 26

What area of the mouth makes up quadrant 1 in the Triadan numbering system

Answer 26

Upper right

Question 27

What makes up 01

Answer 27

Incisor nearest the midline

Question 28

What makes up 04

Answer 28

Canine

Question 29

What makes up 08

Answer 29

Premolar 4

Question 30

Mesial

Answer 30

Pointing at the nearest neighbouring tooth towards the rostrum

Question 31

Distal

Answer 31

Pointing at the nearest neighbouring tooth away from the rostrum

Question 32

Labial

Answer 32

Away from oral cavity towards the lips

Question 33

Buccal

Answer 33

Away from oral cavity towards cheek

Question 34

Palatal

Answer 34

Into oral cavity towards the hard palate

Question 35

Maxillary

Answer 35

Into oral cavity caudal to the hard palate (molars)

Question 36

What provides innervation to the teeth

Answer 36

CNV2 (superior alveolar n, to maxilla) and CNV3 (inferior alveolar n, to mandible)

Question 37

What arch is made up of the palatoglossal muscle, between the base of the tongue and the soft palate

Answer 37

Palatoglossal arch

Question 38

What arch is between the pharynx and soft palate

Answer 38

Palatopharyngeal arch

Question 39

What are the intrinsic muscles of the tongue

Answer 39

Vertical, longitudinal, transverse

Question 40

What are the two extrinsic muscles of the tongue that do not attach to the tongue

Answer 40

Geniohyoid and mylohyoid

Question 41

What nerve axons make up the lingual nerve

Answer 41

trigeminal (CNV3), parasympathetic, facial (CN VII)

Question 42

What is the function of each axon of the lingual nerve

Answer 42

Parasympathetic: salivary glands CN V3: general sensation to rostral 2/3 CN VII: taste to rostral 2/3

Question 43

What is the role of the glossopharyngeal nerve for the tongue

Answer 43

taste and general sensation caudal 1/3

Question 44

What is the role of CN X (vagus) for the tongue

Answer 44

taste caudal 1/3

Question 45

What is the role of CN XII (hypoglossal) for the tongue

Answer 45

motor to all muscles

Question 46

What is the blood supply to the tongue

Answer 46

Lingual a.

Question 47

what is responsible for the cough reflex and sensory stimulation of the larynx

Answer 47

cranial laryngeal n.