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Equine Special Senses - Horse Anatomy (view source)
Revision as of 13:25, 22 November 2012
, 13:25, 22 November 2012→Nose
Rostrally, the median septum is a continuation of the ethmoid bone. The median septum is made up of hyaline cartilage, and divides the [[Equine Upper Respiratory Tract - Horse Anatomy#Nasal Cavity|nasal cavity]] into left and right halves.
Rostrally, the median septum is a continuation of the ethmoid bone. The median septum is made up of hyaline cartilage, and divides the [[Equine Upper Respiratory Tract - Horse Anatomy#Nasal Cavity|nasal cavity]] into left and right halves.
===Nasal conchae===
Nasal conchae are '''turbinate bones''' that project into the nasal cavity. Their purpose is to increase the respiratory surface area, and to create turbulence within the passing air. This helps to filtrate and warm or cool the air that passes through. They are cartilagenous or ossified scrolls that are covered with mucous membrane, under which is a layer of anastomosing blood vessels.
There are dorsal and ventral conchae, the dorsal concha extending further into the nasal cavity. The conchae divide the nasal cavity into meatuses, which branch out from a common nasal meatus which is adjacent to the nasal septum. There are three nasal meatuses which branch from the common nasal meatus: '''dorsal''', '''middle''' and '''ventral''':
'''Dorsal nasal meatus''': The passage between the roof of the nasal cavity and the dorsal nasal concha.
'''Middle nasal meatus''': Between the dorsal and ventral conchae, and communicates with the [[Equine Upper Respiratory Tract - Horse Anatomy#Paranasal Sinuses|paranasal sinuses]].
'''Ventral nasal meatus''': The main pathway for airflow leading to the [[Pharynx - Anatomy & Physiology|pharynx]], and is positioned between the ventral nasal concha and the floor of the nasal cavity.
'''Common nasal meatus''': The longitudinal space on either side of the nasal septum.
The [[Equine Upper Respiratory Tract - Horse Anatomy#Paranasal Sinuses|paranasal sinuses]] are extensions of the [[Equine Upper Respiratory Tract - Horse Anatomy#Nasal Cavity|nasal cavity]].
==Gustatory System==
==Gustatory System==