WBCs Flashcards
Neutrophils on Blood Film
have nuclear lobes (2-5)
Eosinophils on Blood Film
2 spherical nuclear lobes with orangey granulation
Basophils on Blood Film
What is the most abundant WBC?
Neutrophils
what is the normal amount of lobes for a neutrophil to have and what do deviations to this mean?
2-5
<2 = immature neutrophil (band neutrophil or left-shifted neutrophil)
>5 = hypersegmentation - b12 deficiency
where are neutrophils stored? why?
in bone marrow so that they can be rapidly released on bacterial infection
What is the function of a neutrophil?
Limit how much microbes can grow after infection which can then be destroyed
What is chemotaxis?
movement in response to a chemical stimulant –
Explain how a neutrophil achieves its function in 5 steps
Chemotaxis
Binding to the bacterium
Engulfment and phagosome formation
Phagolysome formation
Degradation of the bacterium
What is the function of an eosinophil?
Explain how an eosinophil achieves it’s function
Eosinophils have an Antiparasitic function. What does this mean and how do they achieve this?
What type of blood cell is responsible for the expression of conditions such as asthma and hay fever?
what is the least common WBC?
Basophils
What is the function of a basophil?