Hen there is a cut in the skin and bacteria enter the body, the immune system responds. First, macrophages approach the area of
the cut. Next, the macrophages surround any bacterial cells and engulf them. What feature of the immune system is best described by this scenario? A.
antigen specificity, which is a part of adaptive immunity
B.
the phagocytotic barrier, which is a part of innate immunity
C.
the inflammatory barrier, which is a part of innate immunity
D.
self-recognition, which is a part of adaptive immunity
Correct answer: B). The phagocytotic barrier, which is a part of innate immunity
The scenario represents the phagocytosis, which is a type of endocytosis by which the cell engulfs microbial pathogens. The main cells of the immune system that are involved in phagocytosis include macrophages, neutrophils, and dendric cells.
It is a mechanism which is used by the immune system to kill and processing of antigen that play an important role in innate immune response.
1. Notify teacher 2. run the cut under warm water with soap to clean the wound 3. secure the wound with a bandage 4. make sure the glassware is properly disposed (by teacher)
<span>Inderal blocks beta-adrenergic receptors in the heart, thereby decreasing the influence of the sympathetic nervous
system on these tissues. The nurse should assess the heart rate for bradycardia and the blood pressure for
hypertension.</span>
Does nature really hurt itself? does nature want to be ruined? if I would be a nature I will kick those people that have nothing to do but hurt me. Pollution is a result of human activities. it is a problem caused by many.
