The Innate Immune System
•Acts as the first line of defense
•Is nonspecific, meaning it tries to prevent everything from coming in
•Is nonadaptive
-does not have a memory
-will not learn to keep substances out even after repeated exposure
•Includes skin, fur, saliva, stomach acid and mucous
It works as a shield agains the outside.
If you rub an infection on the skin, you have a very very low chance of getting it because the skin is a waterproof barrier of dead cells (the top layer of skin cells is dead).
Likewise the mucus membranes catch the infection and force them out of the body (through sneezing, coughing, etc.) Mucus, being moist, is less effective than the skin because it allows the infection to grow. The water around the eye are considered mucus membranes (which why they water during Allergies and colds).
Your digestive system (which is considered a part of the innate immune system) destroys infections with stomach acid and mucus. However, infections that can withstand the acid (such as stomach viruses) can attack the system.
It is a quality that you were born with, not one that you have aquired
The adaptive immune system is activated if the innate immune system is unable to control the infection.
no
The innate immunes system does not produce any antibodies. Cells of the innate immune system are macrophages, granulocytes (neutrophils, basophils, eusinophils), natural killer cells...
which of these is not apart of the body immune system
No, the first line of the immune system is the intact skin, mucous membranes and their secretions, normal microbiota all are physical barriers.
Innate Defense System
The immune system, primarily.The immune system.Really...
Inflammation
Inflammation
Innate
Complement is a protein made in the innate immune system that embeds itself in the membrane of bacteria, leaving a hole through which the cytoplasm escapes killing the bacterial cell.
This is generally referred to as the Immune System, which can be further split into the Innate and Adaptive Immune System