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Diseases of the nasal cavity and sinuses (view source)
Revision as of 21:16, 29 November 2006
, 21:16, 29 November 2006→Functional anatomy
==Functional anatomy==
==Functional anatomy==
===Mucosa===
**Mucosal epithelium
**Mucosal epithelium
***Nares and epiglottis- stratified squamous
***Nares and epiglottis- stratified squamous
***Lymphoid tissue
***Lymphoid tissue
**Blood vessels, lymphatics and nerves
**Blood vessels, lymphatics and nerves
***Very rich blood supply to nasal mucosa
***Very rich blood supply to nasal mucosa===
===Nasal chambers and turbinates
**Scrolls of turbinate bone
**Scrolls of turbinate bone
**Arrangements vary with species
**Arrangements vary with species
===Nasal septum===
**Full length of nasal chamber in horses
**Full length of nasal chamber in horses
***2 openings into pharynx
***2 openings into pharynx
**Partial length in other species
**Partial length in other species
***Single opening into pharynx
***Single opening into pharynx
===Sinuses===
**Size, arrangement and number vary with species
**Size, arrangement and number vary with species
**Poorly developed in carnivores
**Poorly developed in carnivores
***Cheek teeth embedded within the maxillary sinuses
***Cheek teeth embedded within the maxillary sinuses
***Maxillary sinusitis secondary to tooth root abscesses
***Maxillary sinusitis secondary to tooth root abscesses
===Guttural pouch===
**Horses
**Horses
***Diverticulum of the eustachian tube with a thin slit-like opening at the rostroventral aspect into the pharynx.
***Diverticulum of the eustachian tube with a thin slit-like opening at the rostroventral aspect into the pharynx.