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==Introduction==

==Introduction==

<p>''Sometimes the term tonsil is used to refer to all mucosal associated lymphoid tissue (MALT). In this article it will specifically deal with tonsils located in the naso- & oro-pharynx.''</p>

<p>''Sometimes the term tonsil is used to refer to all mucosal associated lymphoid tissue (MALT). In this article it will specifically deal with tonsils located in the [[Nasopharynx - Anatomy & Physiology|nasopharynx]] & [[Oral Cavity - Oropharynx - Anatomy & Physiology|oropharynx]].''</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>

<p>The tonsils are part of the MALT and more specifically the GALT. They are located in the [[Nasopharynx - Anatomy & Physiology|nasopharynx]] and [[Oral Cavity - Oropharynx - Anatomy & Physiology|oropharynx]] and form a ring of lymphoid tissue around the [[Pharynx - Anatomy & Physiology|pharynx]] to protect the openings into the [[Alimentary - Anatomy & Physiology|alimentary]] and [[Cardiorespiratory System - Anatomy & Physiology#Upper Respiratory Tract|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 - WikiBlood|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>