Changes

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[[Image:LH Ileal Peyer's Patch Diagram.jpg|thumb|250px|right|<p>'''Diagram: Peyer's patch'''</p>^{©Nottingham Uni 2008}]]

[[Image:LH Ileal Peyer's Patch Diagram.jpg|thumb|250px|right|<p>'''Diagram: Peyer's patch'''</p>^{©Nottingham Uni 2008}]]

<p>''Also called aggregated nodules''</p>

<p>''Also called aggregated nodules''</p>

<p>Peyer’s patches are lymphoid tissues found in the wall of the [[Small Intestine - Anatomy & Physiology|small intestine]]. They are part of the mucosal-associated lymphoid tissues (MALT) and more specifically the gut-associated lymphoid tissue (GALT). Although nodules of lymphatic tissue are found throughout the intestines in the [[Small Intestine - Anatomy & Physiology|small intestine]] larger collections of nodules exist and these are referred to as Peyer’s patches. In many species they act as a primary lymphoid tissue (cattle, sheep , pigs, horses, dogs and rabbits).</p>

<p>Peyer’s patches are lymphoid tissues found in the wall of the [[Small Intestine - Anatomy & Physiology|small intestine]]. They are part of the mucosal-associated lymphoid tissues (MALT) and more specifically the gut-associated lymphoid tissue (GALT). Although nodules of lymphatic tissue are found throughout the intestines in the [[Small Intestine - Anatomy & Physiology|small intestine]] larger collections of nodules exist and these are referred to as Peyer’s patches. In many species they act as a primary lymphoid tissue (cattle, sheep , pigs, horses, dogs and rabbits).</p>

*Infected by mycobacteria in [[Intestines Proliferative Enteritis - Pathology#Paratuberculosis (Johnes disease)|Johnes disease]]

*Infected by mycobacteria in [[Intestines Proliferative Enteritis - Pathology#Paratuberculosis (Johnes disease)|Johnes disease]]

*[[Yersinia]] enter the intestinal mucosa via M cells

*[[Yersinia]] enter the intestinal mucosa via M cells