Canine Olfaction

Question 1

The upper respiratory tract is composed of?

Answer 1

• paranasal sinuses
• nose and nasal cavity
• nasopharynx
• larynx

Question 2

The lower respiratory tract is composed of?

Answer 2

• trachea
• bronchi and lungs

Question 3

In a broad sense, what does the nose include?

Answer 3

• external nose
• paired nasal cavities
• paranasal sinuses

Question 4

A normal length nose like a labs is called?

Answer 4

mesocephalic

Question 5

A squished nose like a frenchies is?

Answer 5

Brachycephalic

Question 6

A longer than normal nose like a greyhounds is?

Answer 6

dolichocephalic

Question 7

The moist bare skin around the nostrils is called?

Answer 7

nasal plane

Question 8

The nose skeleton is ____ and therefore flexible.

Answer 8

cartilaginous

Question 9

How many endoturbinates are there?

Answer 9

4

Question 10

How many ectoturbinates are there?

Answer 10

6

Question 11

The ethmoidal labyrinth is made up of?

Answer 11

ethmoturbinate bones

Question 12

What is the first and larger endoturbinate?

Answer 12

dorsal nasal concha

Question 13

On a caudal view of the ethmoidal bone, what structure can you see?

Answer 13

cribriform plate

Question 14

On a rostral view of the ethmoidal bone, what structure can you see?

Answer 14

perpendicular plate

Question 15

What bone is from a different center of ossificatin and is therefore considered an individual bone and not part of the ethmoidal bone?

Answer 15

ventral nasal concha

Question 16

What are the spaces among canchae and walls of the nasal cavity?

Answer 16

nasal meatuses

Question 17

The rostral and middle mucosa of the nose is named respiratory mucosa, why?

Answer 17

they do not contain olfactory receptors

Question 18

The respiratory mucosa do not contain olfactory receptors, but instead contain?

Answer 18

tactile and nociceptive receptors innervated by CN V

Question 19

Olfactory nerve CN II receptors are where?

Answer 19

in olfactory mucosa located in the most caudal region of the nasal cavity

Question 20

What is the special organ that contains pheromone receptors?

Answer 20

vomeronasal organ (Jacobson)

Question 21

The opening of the larynx is composed of what parts?

Answer 21

• epiglottis
• thyroid
• 2x arytenoid
• cricoid

Question 22

What ligament attaches the arytenoid to the thyroid closest to the cricoid?

Answer 22

vocal ligament

Question 23

What ligament attaches the arytenoid to the thyroid closest to the epiglottis?

Answer 23

vestibular ligament

Question 24

What ligament connects the cricoid to the thyroid?

Answer 24

cricothyroid ligament

Question 25

The vocal ligament connects the thyroid to what process on the arytenoid?

Answer 25

vocal process

Question 26

What dorsal process of the arytenoid lies closer to the cricoid?

Answer 26

corniculate process

Question 27

What dorsal process of the arytenoid lies closer to the epiglottis?

Answer 27

cuneiform process

Question 28

What lies between the vestibular fold and vocal fold?

Answer 28

laryngeal ventricle

Question 29

What intrinsic muscle of the larynx is innervated by the caudal laryngeal nerve and abducts/opens the glotis?

Answer 29

dorsal cricoarytenoid muscle