skull/teeth/pharynx

Question 1

dogs/cats have a ____ bony orbit

Answer 1

incomplete

Question 2

paranasal sinuses are lined with

Answer 2

Mucous membranes composed of tunica mucosa

Question 3

Where do all sinuses drain for dogs/cats?

Answer 3

nasal cavity

Question 4

Sinus

Answer 4

Bony cavities found between 2 layers of a single bone

Question 5

Recess

Answer 5

Bony cavities found between 2 bones

Question 6

calvaria is made of which bones

Answer 6

frontal, parietal, occipital

Question 7

In most domestic species, caudal plane of skull is made up of what bones?

Answer 7

occipital

Question 8

What are the caudal bones of a cow skull?

Answer 8

Occipital, parietal

Question 9

Which bone is excessive on the cow?

Answer 9

Frontal

Question 10

Where do the sinuses of a horse drain?

Answer 10

Middle nasal meatus

Question 11

In horse: Dorsal nasal conchal sinus is continuous with which sinus?

Answer 11

Frontal

Question 12

In horse: frontal and conchal sinus form what?

Answer 12

conchofrontal sinus

Question 13

The conchofrontal sinus communicates with which sinus

Answer 13

Caudal maxillary

Question 14

Horse: Caudal maxillary communicates with what structure

Answer 14

middle nasal meatus

Question 15

Horse: Ventral conchal sinus drains into :

Answer 15

Rostral maxillary sinus

Question 16

Horse: rostral maxillary drains into:

Answer 16

Middle nasal meatus

Question 17

Ruminant: what structure is within the caudal frontal sinus and what vasculature does it contain?

Answer 17

supraorbital canal
supraorbital vein

Question 18

Ruminants: What are the rostral and caudal frontal sinuses divided by?

Answer 18

Oblique septum

Question 19

Ruminant: The lateral, medial components of the rostral sinus drains into what?

Answer 19

Ethmoidal meatus

Question 20

Which bones of the skull are not derived from the neural crest?

Answer 20

parietal, occipital (dervied from paraxial mesoderm)

Question 21

What type of teeth do most vertebrates have? and what does it mean?

Answer 21

homodont : teeth are the same shape, usually conical

Question 22

What type of teeth do mammals have?

Answer 22

Heterodont: teeth are in different forms

Question 23

What type of dentition do pig have? and what other animals have it?

Answer 23

Brachydont: low crowned
Dog, cat
Incisors, Canines: ruminants

Question 24

What is occlusional surface?

Answer 24

The surface of tooth that meets its opposite number on the other jaw

Question 25

Teeth of the horse and molars/premolars of ruminant:

Answer 25

Hypsodont

Question 26

Carnassial teeth definition and which ones?

Answer 26

Specialized pair of enlarged upper and lower teeth for tearing
Upper 4th premolar and lower first molar

Question 27

Deciduate dental formula dog

Answer 27

2(Di 3/3 Dc 1/1 Dp 3/3) =28

Question 28

Which deciduate tooth is not present?

Answer 28

First premolar

Question 29

Permanent dental formula dog

Answer 29

2( I3/3 C1/1 P4/4 M2/3) = 42

Question 30

Maxillary recess is between which bones?

Answer 30

ethmoid and maxillary

Question 31

In the horse how many deciduous canines are there?

Answer 31

None

Question 32

What is diastema

Answer 32

A wide space between incisors and premolars

Question 33

What type of teeth do horses have?

Answer 33

Hypsodont- long crowned

Question 34

How do hypsodont and brachydont teeth differ?

Answer 34

1. Hyp continue to grow from the alveolae
2. Occlusal surfaces wear down during mastication and create a unique pattern

Question 35

There is never a first ____ in the ruminant

Answer 35

premolar

Question 36

What type of epithelium does the esophagus have?

Answer 36

Non ciliated squamous

Question 37

What type of epithelium does the trachea have

Answer 37

ciliated pseudostratified columnar

Question 38

Boundaries of oropharynx

Answer 38

cranially: palatoglossal arch
caudally: epiglottis

Question 39

Boundaries of nasopharynx

Answer 39

Cranially: choanae
Caudally: palatopharyngeal arch

Question 40

Boundaries of laryngopharynx

Answer 40

cranial: palatopharyngeal arch/nasopharynx caudal border
caudal: pharyngoesophageal limen