Module 17 Exam 3 Flashcards Preview

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Flashcards in Module 17 Exam 3 Deck (71)
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1

where do early signs of systemic conditions manifest themselves

in the oral soft tissues

2

What are findings that may suggest a blood disorder

-gingival bleeding
-history of difficulty of controlling bleeding
-history of bruising
-numerous petichiae
-pallor of mucous membrane
-atrophy of papillae of tongue
-sore painful tongue
-infections, dont respond to normal tx
-server ulcerations
-exaggerated gingival response to local irritants

3

what is normal blood comprised of

55% plasma and 45% formed elements

4

what do the formed elements consist of?

44% erythrocytes
1% leukocytes

5

what does hematocrit show

-percentage packed volume of blood cells
-normal values are males 39-39% females 33-43%

6

Where do blood cells originate

bone marrow

7

what is a hemocytoblast

stem cell of origin

8

what cells leave the bone marrow and go to lymphoid tissue for maturing

agranulocytes (lymphocytes, monocytes)

9

What are the plasma proteins

albumin, gamma globulins, beta globulins, fibrinogen, prothrombin

10

what is albumin

maintains tissue fluid balance within the vascular system

11

what are gamma globulins

circulating antibodies essential to the immune system

12

what are beta globulins

aid in transport of hormones, metallic ions and lipids

13

what is fibrinogen and prothrombin essential for

blood clotting

14

if plasma is allowed to clot what is it called

serum

15

what is plasma composed of

90% water
10% plasma proteins, inorganic salts, gases substances being transported

16

What are erythrocytes

-RBC/corpuscles
-biconcave discs
-CO2 transported from cells

17

what are the functions of RBC

transport hemoglobin, carry 02 to the body, C02 transported from the cells

18

what is hemoglobin measured in

g/ml
normal values 12 to 17.2

19

what are the two kinds of WBC (leukocytes)

granulocytes, agranulocytes

20

what are the granulocytes

neutrophils, eosinophils, basophils

21

what are the agranulocytes

lymphocytes, monocytes

22

what cells arrive first of the WBC

neutrophils

23

what functions as a transport medium for WBC

blood

24

what are lymphocytes

-round cells with round nucleus
capable of reverting to blast-like cells of origin and then multiplying as the immunologic need arises

25

what are monocytes

-bean shaped
-phagocytic
-in conn tissue differentiate into macrophages

26

what are neutrophils

PMN
-most numerous of WBC
-ameoboid in the tissues and function in phagocytosis, first line of defense

27

what are eosinophils

-increase during allergic reactions

28

what are basophis

-increases vascular permeability during inflammation so that the phagocytic cells can pass into the area

29

what are plateles

-formed element, no nucleus
-active in blood clotting mechanism

30

what is anemia

-reduction of the hemoglobin concentration, the hematocrit or the number of RBC to a level that is below normal