Functions of leukocytes in immune system Flashcards
1
Q
What is the most important function of neutrophils and macrophages?
A
Phagocytosis
2
Q
What is a phagocytic cell called after fusing with a lysosome?
A
Phagolysosome
3
Q
What is phagocytic activity?
A
the actual set-up of the non-specific immune system
4
Q
What is phagocytic index?
A
characterization of each individual phagocyte.
5
Q
Which cells have the highest phagocytic index?
A
Monocytes and neutrophils
6
Q
What characterize a phagocyting cell?
A
More than 3 engulfed particles
7
Q
Name 3 selective methods to prevent phagocytosis of normal cells?
A
- Natural structures have smooth surfaces which prevents phagocytosis
- Protective protein coat
- body have spesific means for recognizing foreign agents
8
Q
Phagocytic chemical secretion causes?
A
- stimulation of kinin activation
- stimulation of clotting and anticlotting systems
- stimulation of histamine release
- release of lysosomal enzymes
- stimulation of granulopoiesis
- release of acute phase protein
- stimulation of hypothalamus
- stimulation of B and T lymphocytes
