Canine Olfaction Flashcards
The upper respiratory tract is composed of?
- paranasal sinuses
- nose and nasal cavity
- nasopharynx
- larynx
The lower respiratory tract is composed of?
- trachea
- bronchi and lungs
In a broad sense, what does the nose include?
- external nose
- paired nasal cavities
- paranasal sinuses
A normal length nose like a labs is called?
mesocephalic
A squished nose like a frenchies is?
Brachycephalic
A longer than normal nose like a greyhounds is?
dolichocephalic
The moist bare skin around the nostrils is called?
nasal plane
The nose skeleton is ____ and therefore flexible.
cartilaginous
How many endoturbinates are there?
4
How many ectoturbinates are there?
6
The ethmoidal labyrinth is made up of?
ethmoturbinate bones
What is the first and larger endoturbinate?
dorsal nasal concha
On a caudal view of the ethmoidal bone, what structure can you see?
cribriform plate
On a rostral view of the ethmoidal bone, what structure can you see?
perpendicular plate
What bone is from a different center of ossificatin and is therefore considered an individual bone and not part of the ethmoidal bone?
ventral nasal concha
What are the spaces among canchae and walls of the nasal cavity?
nasal meatuses
The rostral and middle mucosa of the nose is named respiratory mucosa, why?
they do not contain olfactory receptors
The respiratory mucosa do not contain olfactory receptors, but instead contain?
tactile and nociceptive receptors innervated by CN V
Olfactory nerve CN II receptors are where?
in olfactory mucosa located in the most caudal region of the nasal cavity
What is the special organ that contains pheromone receptors?
vomeronasal organ (Jacobson)
The opening of the larynx is composed of what parts?
- epiglottis
- thyroid
- 2x arytenoid
- cricoid
What ligament attaches the arytenoid to the thyroid closest to the cricoid?
vocal ligament
What ligament attaches the arytenoid to the thyroid closest to the epiglottis?
vestibular ligament
What ligament connects the cricoid to the thyroid?
cricothyroid ligament
The vocal ligament connects the thyroid to what process on the arytenoid?
vocal process
What dorsal process of the arytenoid lies closer to the cricoid?
corniculate process
What dorsal process of the arytenoid lies closer to the epiglottis?
cuneiform process
What lies between the vestibular fold and vocal fold?
laryngeal ventricle
What intrinsic muscle of the larynx is innervated by the caudal laryngeal nerve and abducts/opens the glotis?
dorsal cricoarytenoid muscle
