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a + p 2 > ch 19 blood pt 2 > Flashcards

ch 19 blood pt 2 Flashcards

1
Q

what are WBCs also called

A

leukocytes

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2
Q

WBCs characteristics

A

have nuclei
lacks hemoglobin

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3
Q

WBC function

A

defends body against pathogens
removing toxins
attacks abnormal cells

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4
Q

types of WBCs

A

granular and agranular

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5
Q

granular leukocytes

A

neutrophils
eosinophils
basophils

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6
Q

agranular leukocytes

A

monocytes
lymphocytes

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7
Q

neutrophils

A

most abundant WBC
-phagocytic wbc that’s the first to arrive at the site of injury,

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8
Q

degranulation

A

reduction in the number of cytoplasmic granules

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9
Q

eosinophils

A

engulf bacteria
attack large parasites
release enzymes that reduce inflammation

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10
Q

basophils

A

help defend your body from allergens by releasing histamine and heparin

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11
Q

histamine function

A

dilates blood vessels

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12
Q

heparin function

A

prevents blood clotting

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13
Q

monocytes

A

aggressive phagocytes that engulf large pathogens

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14
Q

lymphocytes

A

fight disease and infection

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15
Q

classes of lymphocytes

A

t cells
b cells
NK cells

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16
Q

T cells

A

responsible for cell mediated immunity: defense against invading foreign cells

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17
Q

B cells

A

responsible for humoral immunity: defense that involves antibodies

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18
Q

natural killer cells

A

responsible for immune surveillance: detection and destruction of abnormal cells

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19
Q

natural killer (NK) cells

A

responsible for immune surveillance: detection and destruction of abnormal cells

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20
Q

differential count of WBCs

A

examining a blood smear slide and determine the percentage of each specific type of WBC

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21
Q

WBC disorders (3)

A

leukopenia
leukocytosis
leukemia

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22
Q

leukopenia

A

low WBC count

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23
Q

leukocytosis

A

high WBC count

24
Q

leukemia

A

cancer of the WBCs

25
leukopoiesis
WBC production
26
lymphocytopoiesis
production of lymphocytes
27
colony-stimulating factors
hormones that regulate WBC populations
28
platelets
aka thrombocytes - cell fragments involved in clotting
29
platelet function
release chemicals important for the clotting process temporarily patch damage vessel wall
30
thrombocytopoiesis
platelet production
31
where does thrombocytopoiesis occur
in red bone marrow produced by large cells called megakaryocytes
32
hemostasis
process of stopping bleeding
33
3 phases of hemostasis
vascular platelet coagulation
34
vascular phase
35
platelet phase
36
coagulation phase
37
factors that prevent blood clotting (4)
anticoagulants heparin thrombomodulin prostacyclin
38
anticoagulants
substance that prevents blood clots
39
heparin
40
thrombomodulin
a natural coagulant
41
prostacyclin
42
bleeding and clotting extremes
thrombocytopenia hemophilia thrombophilia deep vein thrombosis
43
thrombocytopenia
low platelet count
44
hemophilia
45
thrombophilia
46
deep vein thrombosis
47
Which blood type is called the universal donor?
O negative
48
which blood type is universal recipient
AB positive
49
Most abundant WBC
neutrophil
50
The only non-nucleated cell in the body
RBCs/erythrocytes
51
Which of the plasma proteins plays a role in disease resistance?
globulins
52
A megakaryoblast will develop into
a platelet
53
what is the precursor to neutrophils
myeloblasts
54
precursor to platelets
Megakaryoblast
55
serum
plasma w/o clotting factors
56
anemia
a condition in which the oxygen-carrying capacity of blood is reduced.

a + p 2 (25 decks)

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