12 Questions
What percentage of blood leukocytes are eosinophils?
1-4%
What is the size of eosinophils?
12µm
What is the shape of the nucleus in eosinophils?
Bi-lobed
What is the lifespan of eosinophils?
~10 days
What are the contents of eosinophil granules?
All of the above
What do eosinophils do in defense against multicellular parasites?
Attach to them and release granules
When can eosinophil numbers be highly elevated?
During parasite infections
What role do eosinophils play in allergic diseases?
Major role
What role do eosinophils play in asthma?
Major role
What is the function of major basic protein in eosinophil granules?
Destroy parasites
What is the function of histaminases in eosinophil granules?
Neutralize histamine
What is the function of proteases in eosinophil granules?
Break down collagen
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