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
