THRB.25

Question 1

Answer 1

Nasomaxillary aperture

Question 2

Answer 2

Dorsal conchal sinus

Question 3

Answer 3

Frontal sinus

(Conchofrontal sinus)

Question 4

Answer 4

Sphenopalatine sinus

Question 5

Answer 5

Caudal maxillary sinus

Question 6

Answer 6

Septum of the maxillary sinus

(Divides maxillary sinus in Eq only)

Question 7

Answer 7

Ventral conchal sinus

Question 8

Answer 8

Rostral maxillary sinus

Question 9

List paired the maxillary sinuses of domestic animals

Answer 9

• Maxillary
• Frontal
• Palatine
• Sphenoidal
• Lacrimal (Ru/Su)
• Dorsal conchal (Eq/Ru/Su)
• Ventral conchal (Eq/Ru/Su)
• Cellulae ethmoidales (Ru/Su)

Question 10

Location of the maxillary sinus

Answer 10

Within the caudal part of the maxilla

Question 11

Which canal projects into the maxillary sinus?

Answer 11

Infraorbital canal

Question 12

Nasomaxillary aperture is found between…

Answer 12

• Middle nasal meatus
• Maxillary sinus

Question 13

Caudal maxillary sinus communicates with…

Answer 13

All sinuses

(except the rostral maxillary sinus in Eq)

Question 14

The maxillary sinus in carnivores is known as…

Answer 14

Maxillary recess

(because it is more of a diverticulum than a sinus)

Question 15

Location of the frontal sinus

Answer 15

Within the frontal bone

Question 16

The frontal sinus communicates with…

Answer 16

• Middle nasal meatus

Question 17

The continuation of the frontal sinus to the dorsal conchal sinus in Eq…

Answer 17

Conchofrontal sinus

Question 18

The frontomaxillary opening is between…

Answer 18

• Caudal maxillary sinus
• Conchofrontal sinus

Question 19

Which species have a multi-compartmented frontal sinus?

Answer 19

Bo/Su

Question 20

The frontal sinus of ruminants extends…

Answer 20

Into the cornual process

Question 21

Which species possess a sphenopalatine sinus?

Answer 21

Equine

(Combination of sphenoid and palatine sinuses)

Question 22

Sphenopalatine sinus communicates with…

Question 23

What is found just dorsal to the sphenoid sinus?

Answer 23

Optic chiasma

(Sinusitis can spread to the optic nerve here)

Question 24

Function of paranasal sinuses

Answer 24

• Increasing muscle attachment area without increasing weight
• Provide thermal + mechanical protection to:
  
  • Orbit
  • Nasal cavity
  • Cranial cavities

Question 25

Paranasal sinuses are lined with...

Answer 25

Respiratory mucosa

Question 26

Answer 26

Lateral part of the frontal sinus

Question 27

Answer 27

Internal table of the frontal sinus

Question 28

Answer 28

Medial part of the frontal sinus

Question 29

Answer 29

Entrance to the maxillary recess

Question 30

Ectoturbinates are located...

Answer 30

In the frontal sinus

Question 31

1; 2; 3

Answer 31

Ectoturbinates 1, 2 and 3