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Hematology > Neutrophils/basic WBC > Flashcards

Neutrophils/basic WBC Flashcards

1
Q

what is the prupose of WBC?

A

to defend the body against foreighn organisms or chemicls and remove debris that result from dead injured cells.

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2
Q

where can most WBC be found?

A

in the tissues, most are not functional in the blood stream

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3
Q

what are the two types of WBC?

A

granulocytes and Agranulecytes

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4
Q

what are granulocytes?

A

contain granules within the cytoplasm

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5
Q

what are 3 types of granulocytes?

A

neutrophils, eosinofils, basophils

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6
Q

what are the components to a Wright Stain/diff quick?

A

fixer,red, blue

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7
Q

what are two types of agranulocytes?

A

lymphocytes and monocytes

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8
Q

how are granulocytes produced?

A

from undifferentiated stem cells in the red bone marrow

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9
Q

what are the four stages of WBC growth

A

Myeloblasts, promyelocyte, myelocyte, band (neutrophils)

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10
Q

what are myeloblasts?

A

non-granular cytoplasm, blue with round red nucleus. nucleoli

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11
Q

what are promyelocytes?

A

has distinct granules present, no nucleoli

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12
Q

what is a myelocyte?

A

granules differentiate, will stain blue or red

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13
Q

what is a band?

A

immature form, nucleus is shape in a smooth horshoe

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14
Q

what number is considered a high demand for neutrophils?

A

7300/ml

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15
Q

what type of WBC cannot return to the bloodstream? granulocytes or agranulocytes?

A

granulocytes

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16
Q

what are neutrophils also known as?

A

polymorphonucleated leukocytes

17
Q

What type of WBC is considered highly phagocytic and motile?

A

neutrophils

18
Q

what is the function of neutrophils?

A

first line of defense against infection by migrating to bacteria and can break down necrotic tissue

19
Q

what does an increase of neutrophils normally mean?

A

actue infection is present

20
Q

what is the average transit time for a neutrophil in blood?

A

10 hours

21
Q

how often are neutrophils replaced?

A

every 2.5 days

22
Q

how are neutrophils lost?

A

through secretions and excreted through mucus membranes

23
Q

what does the neutrophils nucleus look like?

A

dark purple and convoluted

24
Q

what species has neutrophils with cytoplasm with pail pink dust like granules?

A

cat/dog

25
Q

which species have extremely jagged nuclear membrane, and the cytoplasm stains pale pink with fine granules?

A

horse

26
Q

Which species have nuclear membranes that have 1 or more points that pinch together and granules are faintly visable and give an orange color to the cytoplasm?

A

bovine

27
Q

in a D/C/H/G/S how many neutrophils is normal?

A

60-70%

28
Q

In a cow, how many neutrophils is normal?

A

10-40%

Hematology (15 decks)

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