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Tonsils - Anatomy & Physiology (view source)
Revision as of 21:08, 20 August 2008
, 21:08, 20 August 2008no edit summary
<p>The tonsils are part of the MALT and more specifically the GALT. They are located in the nasopharynx and [[Oral Cavity - Oropharynx - Anatomy & Physiology|oropharynx]] and form a ring of lymphoid tissue around the pharynx to protect the openings into the [[Alimentary - Anatomy & Physiology|alimentary]] and respiratory systems.</p>
<p>The tonsils are part of the MALT and more specifically the GALT. They are located in the nasopharynx and [[Oral Cavity - Oropharynx - Anatomy & Physiology|oropharynx]] and form a ring of lymphoid tissue around the pharynx to protect the openings into the [[Alimentary - Anatomy & Physiology|alimentary]] and respiratory systems.</p>
==Structure==
==Structure==
<p>The tonsils are non-encapsulated lymphoid tissue. They have crypts lined with stratified squamous epithelium which are infiltrated with [[Lymphocytes - Anatomy & Physiology|lymphocytes]].</p>
<p>The tonsils are non-encapsulated lymphoid tissue. They have crypts lined with stratified squamous epithelium which are infiltrated with [[Lymphocytes - WikiBlood|lymphocytes]].</p>
<p>Species being covered here are dog, cat, horse, cattle and pig.</p>
<p>Species being covered here are dog, cat, horse, cattle and pig.</p>
===Pharyngeal===
===Pharyngeal===
==Functions==
==Functions==
The tonsils are a [[Secondary Lymphoid Tissue - Anatomy & Physiology|secondary lymphoid tissue]] and [[Lymphocytes - Anatomy & Physiology#B cells|B cells]] in the tonsils become committed to synthesise IgA.
The tonsils are a [[Secondary Lymphoid Tissue - Anatomy & Physiology|secondary lymphoid tissue]] and [[Lymphocytes - WikiBlood#B cells|B cells]] in the tonsils become committed to synthesise IgA.
==In pathology==
==In pathology==
*[[Tonsils - Pathology#Pathology|See here]]
*[[Tonsils - Pathology#Pathology|See here]]
*[[Actinobacillus species#Actinobacillus pleuropneumoniae|Actinobacillus pleuropneumoniae]] in pigs may remain undetected by serological tests and swabbing in on the palatine tonsil
*[[Actinobacillus species#Actinobacillus pleuropneumoniae|Actinobacillus pleuropneumoniae]] in pigs may remain undetected by serological tests and swabbing in on the palatine tonsil