Question

1. Following an infection (or injury) in some tissue, __1__ are released by cells, which triggers a(n) __2__.

One result is the recruitment of __3__, which is part of __4__.

These cells engulf the __5__ in a __6__.

This structure then fuses with a __7__ forming a complex structure called a __8__.

Inside, the pathogen is __9__ and the remnants are expulsed as __10__.

Some of the cells performing this task are __11__, which hold on to some pathogen remnants with its __12__ protein.

Words: Inflammatory response, Phagolysome, Phagsome, Antigen, Cytokinese, Innate immunity, Digested and destroyed, Phagocytic cells, MIH ll, APCs, Lysosome, pathogen

2.

Which of the following is FALSE?

Select one:

a. Innate immune barriers include things like skin and stomach acid.

b. Inflammation is an immune response that essentially increases blood flow to a wounded or infected area.

c. Antibodies bind to specific pathogens.

d. Lymphocytes make up the majority of the innate immune system cells.

Answer 1

1. Following an infection (or injury) in some tissue, Cytokines are released by cells, which triggers a(n) inflammatory response

One result is the recruitment of Phagocytic cells, which is part of innate immunity

These cells engulf the pathogen in a Phagsome.

This structure then fuses with a Lysosome forming a complex structure called a Phagolysome.

Inside, the pathogen is Digested and destroyed and the remnants are expulsed as Antigen.

Some of the cells performing this task are APCs, which hold on to some pathogen remnants with its MIH ll protein

2. Answer is option (d) Lymphocytes make up the majority of the innate immune system cells.

Lymphocytes are part of adaptive immune system. Cells included in innate immune system are neutrophils, monocytes, macrophages.

**Innate immunity include some physical barriers. They are skin, Stomach acid, mucus,etc.

**Inflammation triggers vasodilation in that area which increases the blood flow and thus increase inflammatory cell recruitment to that area.

**Pathogens are antigens . Antibodies produced are against these pathogens. Antibodies bind to and destroy specific pathogens.