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1

percent of blood made up by plasma

55%

2

what is the liquid part of the blood?

plasma

3

what makes up 90% of plasma?

water

4

the most numerous cells of the blood

erythrocytes

5

the common stem cell that all blood elements are formed from

hemocytoblast

6

an immature blood cell

reticulocyte

7

main function of the erythrocyte

transport of oxygen from the lungs to the tissue

8

life span of erythrocytes

100-120

9

what is Anemia?

abnormally low hemogloblin content

10

what causes Aplastic Anemia?

destruction or inhibition of red bone marrow

11

what is Hemorrhagic Anemia caused by?

Acute or chronic blood loss

12

what is Pernicious Anemia?

a Deficiency in B12

13

what group of people is Thalassemia common with?

people with Mediterranean heritage

14

leukocytes make up how much of the total blood volume?

<1%

15

most numerous type of white blood cell

neutrophils

16

term for white blood cell formation

Leukopoiesis

17

what is the job of eosinophils?

to attack and digest parasitic worms that are too large to be destroyed by phagocytes

18

3 types of granulocytes

neutrophils, eosinophils, and basophils

19

structure of eosinophil nuclei

bilobed nuclei

20

the rares WBCs

basophils

21

2 types of Agranulocytes

lymphocytes and monocytes

22

the largest leukocytes

Monocytes

23

what are monocytes effective against?

Viruses
Intracellular bacteria
Chronic infections

24

leukopenia

abnormally low white blood cell count

25

leukemia

Uncontrolled leukocyte formation

26

the two divisions of Leukemia

Myelocytic Leukemias
Lymphocytic Leukemias

27

what does uncontrolled leukocyte formation lead to?

a high number of immature non-functinoal WBC's

28

another word for platelets

thrombocytes

29

steps of Hemostasis

vascular spasm
Formation of platelet plug
Coagulation

30

2 factors in repair

Platelet-derived Growth Factor (PDGF)
Vascular-endothelial Growth Factor (VEGF)