Anatomy

Question 1

In “CT Analysis of the Feline Infraorbital Foramen and Canal” by Davis, Hoyer, et al in Frontiers 2021,

What percentage of brachycephalic cats had an oval shaped foramen? Mesaticephalic cats?

Answer 1

66%
22%

Question 2

In “CT Analysis of the Feline Infraorbital Foramen and Canal” by Davis, Hoyer, et al in Frontiers 2021,

What is the distance between the maxillary foramen (caudal aspect of the infraorbital canal) and the ventral eyeball in brachycephalic cats? Mesaticephalic cats?

Answer 2

3.19mm
4.05mm

Question 3

In “CT Analysis of the Feline Infraorbital Foramen and Canal” by Davis, Hoyer, et al in Frontiers 2021,

What was the average length of the infraorbital canal in brachycephalic cats? Mesaticephalic cats?

Answer 3

4.4mm
4.6mm

Question 4

In “CT Analysis of the Feline Infraorbital Foramen and Canal” by Davis, Hoyer, et al in Frontiers 2021,

What was present in 67% of brachycephalic cats in regards to their infraorbital foramina?

Answer 4

67% had redundant foramina (two smaller foramina instead of a single one)

Question 5

All teeth are the same general shape/type although size may vary (fish, reptiles, sharks)

Answer 5

Homodont

Question 6

Functionally different types of teeth are represented in the dentition (dog, cat)

Answer 6

Heterodont

Question 7

Only one set of teeth that erupt and remain in function throughout life (rodents - heterodont, dolphins - homodont)

Answer 7

Monophyodont

Question 8

Many sets of teeth that are continually replaced (most of these are homodonts - sharks, reptiles)

Answer 8

Polyphyodont

Question 9

Two sets of teeth (deciduous and permanent)

Answer 9

Diphyodont

Question 10

Teeth firmly set in socket using gomphosis (dogs, cats, humans)

Answer 10

Thecodont

Question 11

Teeth are ankyloses directly to the alveolar bone without sockets or true root structure (lizards, fish)

Answer 11

Acrodont

Question 12

Teeth grow from a pocket on the inner side of the jaw bone that brings a larger surface area of the tooth in contact with the jawbone (amphibians and some lizards)

Answer 12

Pleurodont

Question 13

Dentition with short crown to root ratios (primates, carnivores). Cementum only found below the gingival margin

Answer 13

Brachydont

Question 14

Dentition with longer crown to root ratios (cow, horse, rodents). Enamel extends well beyond the gingival margin, cementum and enamel invaginate into a thick layer of dentin

Answer 14

Hypsodont

Question 15

Having cheek teeth with cutting tubercles or cusps arranged to provide a cutting or shearing action (premolars in most carnivores)

Answer 15

Secodont

Question 16

Cheek teeth with low rounded cusps on the occlusal surface of the crown (man)

Answer 16

Bunodont

Question 17

Cheek teeth with cusps interconnected by ridges or lophs of enamel (rhino, elephant)

Answer 17

Lophodont

Question 18

Cheek teeth with cusps that form a crescent shaped ridge pattern (even toe ungulates except swine)

Answer 18

Selenodont