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Flashcards in blood - phyana lab Deck (87)
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1

functions of blood

transportation
regulation
protection

2

composition of blood

55% plasma
45%formed elements

3

composition of plasma

91.5% water
7% proteins
1.5% other nutrients

4

proteins in plasma

albumin
globulin
fibrinogen

5

(54%): function in osmosis; carriers

albumin

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(38%): serve as antibodies

globulin

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(7%): important in clotting

fibrinogen

8

types of agranulocytes

nk cells
lymphocytes
monocytes

9

Carries 98.5% of O2 and 23% of CO2

hemoglobin

10

RBC count (gen, males, females)

RBC count: about 5 million/µl
Male: 5.4 million cells/µl; female: 4.8 million/µl

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structure of RBC which provides for maximal gas exchange
Is flexible for passing through capillaries

Lack of nucleus causes biconcave disc shape with extensive plasma membrane

12

Appear white because of lack of hemoglobin

WBC

13

Normal WBC count:

5,000-10,000/µl

14

WBC count usually increases in

INFECTION

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Two major classes based on presence or absence of granules in WBC

Granular: neutrophils, eosinophils, basophils

Agranular: lymphocytes, monocytes

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usually make up 2/3 of all WBCs

Neutrophils

17

Maj function of WBC

defense against
Infection and inflammation
Antigen-antibody (allergic) reactions

18

wbc Life span:

typically a few hours to days

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high WBC count in response to infection, exercise, surgery

Leukocytosis

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low WBC count

Leukopenia

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from megakaryocytes

platelets

22

normal count of platelets

150,000-400,000/µl blood

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functions of platelets

Plug damaged blood vessels
Promote blood clotting

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life span of platelets

Life span 5–9 days

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Life span of RBC

3-4 months or 120 days

26

Blood types in each person are determined by

genetics

27

antigen of Type A

A antigen

28

antigen of Type B

B antigen

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antigen of Type AB

A antigen and B antigen

30

antigen of Type O

No antigens

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