Eosinophil Flashcards
1
Q
What distinguishes an eosinophil from other granulated cells?
A
They are full of large, uniform eosinophilic (pink) granules
Remember:
- Eosin = a dye that stains pink
- Philic = loving
2
Q
Why is there eosinophilia in helminthic infection?
A
Defends against helminthic infections (major basic protein)
3
Q
Eosinophils are phagocytic cells, particularly in the presence of what?
A
Antigen-antibody complexes
4
Q
How do eosinophils and mast cells interact during an allergic reaction?
A
Eosinophils produce histaminase and arylsulfatase to limit the inflammatory reaction from mast cell degranulation
5
Q
Microscopic appearance of eosinophil
A
- Bilobate nucleus
- Packed with large eosinophilic granules of uniform size
6
Q
Name five diagnoses to consider in a patient discovered to have eosinophilia
A
- Neoplasm
- Asthma
- Allergic reaction
- Collagen vascular disease
- Parasites
- Remember:*
- NAACP
