PATHOLOGY

PATHOLOGY MCQ

IMMUNE RESPONSE

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What is nonspecific immunity?
A
response that is the same for all pathogens; the immune system that you’re born with
B
response protects the body against specific pathogens
C
a substance used to stimulate the production of antibodies and provide immunity against one or several diseases
D
a bacterium, virus, or other microorganism that can cause disease.
Explanation: 

Detailed explanation-1: -Innate, or nonspecific, immunity is the defense system with which you were born. It protects you against all antigens. Innate immunity involves barriers that keep harmful materials from entering your body. These barriers form the first line of defense in the immune response.

Detailed explanation-2: -Innate immune responses are not specific to a particular pathogen in the way that the adaptive immune responses are. They depend on a group of proteins and phagocytic cells that recognize conserved features of pathogens and become quickly activated to help destroy invaders.

Detailed explanation-3: -The second line of defense against non-self pathogens is called adaptive immune response. Adaptive immunity is also referred to as acquired immunity or specific immunity and is only found in vertebrates.

Detailed explanation-4: -Nonspecific, or innate, immunity begins with the barrier defenses, which are barriers that protect the internal environment from foreign particles and potential pathogens. These defenses can also be described as the “first line of defense.”

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