Changes

[[Image:LH Eosinophil Histology.jpg|right|thumb|150px|<p>'''Eosinophil'''</p>^{©RVC 2008}]]

[[Image:LH Eosinophil Histology.jpg|right|thumb|150px|<p>'''Eosinophil'''</p>^{©RVC 2008}]]

<p>Eosinophils are a similar size to [[Neutrophils|neutrophils]], have a bilobed nucleus and are characterised by the large eosinophilic granules present in their cytoplasm. Produced in the [[Bone Marrow - Anatomy & Physiology|bone marrow]] they migrate into circulation briefly before moving into tissue where they survive for around six hours. The proportion of eosinophils circulating depends on the state of the animal. Normally numbers are very low but will rise considerably during a parasitic infection or allergic reaction.</p>

<p>Eosinophils are a similar size to [[Neutrophils|neutrophils]], have a bilobed nucleus and are characterised by the large eosinophilic granules present in their cytoplasm. Produced in the [[Bone Marrow - Anatomy & Physiology|bone marrow]] they migrate into circulation briefly before moving into tissue where they survive for around six hours. The proportion of eosinophils circulating depends on the state of the animal. Normally numbers are very low but will rise considerably during a parasitic infection or allergic reaction.</p>

<p>Eosinophils are mainly located in connective tissue associated with routes into the animal i.e. [[Cardiorespiratory System - Anatomy & Physiology#Upper Respiratory Tract|respiratory]], [[Alimentary System Overview - Anatomy & Physiology|alimentary]], [[Urinary System - Anatomy & Physiology|uro]][[Reproductive System - Anatomy & Physiology|gential]] systems. They play key roles in reacting to [[Parasites|parasites]] and allergens but have limited phagocytic ability and therefore play no role in bacterial infections.</p>

<p>Eosinophils are mainly located in connective tissue associated with routes into the animal i.e. [[Cardiorespiratory System Overview - Anatomy & Physiology#Upper Respiratory Tract|respiratory]], [[Alimentary System Overview - Anatomy & Physiology|alimentary]], [[Urinary System - Anatomy & Physiology|uro]][[Reproductive System - Anatomy & Physiology|gential]] systems. They play key roles in reacting to [[Parasites|parasites]] and allergens but have limited phagocytic ability and therefore play no role in bacterial infections.</p>

==Development==

==Development==

<p>The eosinophil is a [[Granulocytes|granulocyte]] and has a similar development to the other [[Granulocytes|granulocytes]]. This process is called [[Leukopoiesis#Granulopoiesis|granulopoiesis]] and further details can be found [[Leukopoiesis#Eosinophils|here]]. Eosinophils are more prominent in some species than others, notably in the pig and the horse.</p>

<p>The eosinophil is a [[Granulocytes|granulocyte]] and has a similar development to the other [[Granulocytes|granulocytes]]. This process is called [[Leukopoiesis#Granulopoiesis|granulopoiesis]] and further details can be found [[Leukopoiesis#Eosinophils|here]]. Eosinophils are more prominent in some species than others, notably in the pig and the horse.</p>