Immune system - Immunity (covers more of innate immunity)

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Immune system immunity quiz is a quiz about the immunity of the immune system. Just wasted your time reading the redundant title and description.

Covers more of Innate immunity.

1

Which of the following is present at birth:
- Adaptive immunity
- Specific immunity
- Innate immunity
- Acquired immunity
2

______ immunity takes time to recognize specific threatening targets and react to overcome the threat.
- Innate immunity
- Acquired immunity
- Adaptive immunity
3

Primary cells of innate immunity do not include:
- Epithelial barrier cells
- Phagocytic cells (neutrophils, macrophages)
- Natural killer cells
- Myocytes
4

______ (cytokines) are chemicals released from cells to trigger or regulate innate and adaptive immune responses & also participate in innate immunity
- Interleukins
- Leukotrienes
- Interferons
- All of the above
- None of the above
5

When genetic characteristics of a particular type of species provides defence against certain pathogens, it is known as __________ .
- Species resistance
- Pathogen resistance
- Genetic resistance.
6

Mechanical barriers in the innate immune system's first line of defence include:
- A continuous barrier formed by skin and mucous membranes - several layers of densely packed cells and other materials protecting against invasion by foreign cells
- Sebum (pathogen-inhibiting agents)
- Mucus (pathogens stick and are swept away)
- Enzymes (hydrolyse pathogens)
7

Chemical barriers in the innate immune system's first line of defence include:
- sebum (pathogen-inhibiting agents)
- mucus (pathogens stick and are swept away)
- enzymes (hydrolyse pathogens)
- HCl in gastric mucosa to destroy pathogens; saliva, perspiration, tears, urine
- All of the above
- None of the above
8

The body's second line of defense, inflammatory response, is triggered whenever:
- body tissues are injured
- there is an increase in pressure in microcirculation
- there is an increase in exudate of plasma and blood cells causing swelling and oedema
9

Inflammatory response does not do the following:
- Prevent spread of damaging agent
- Attack specific abnormal or non-self agents
- Stimulates & enhances immune response
- Repair process
- Disposal of cell debris & pathogens
10

The following is not a cardinal sign during the inflammatory response:
- Redness (rubor)
- Heat (calor)
- Swelling (tumor)
- Death (mordor)
- Pain (dolor)
11

The chemical histamine:
- Dilates post capillary venules
- Increases permeability and blood flow
- Permits exudate formation
- All of the above
- None of the above
12

Margination or pavementing of the leukocytes involve:
- Accumulation and adhesion of leukocytes to the epithelial cells of blood vessel walls at the site of injury in the early stages of inflammation
- The movement or passage of leukocytes through intact capillary walls into surrounding body tissue.
- Direction of movements according to certain chemicals in their environment
- All of the above
- None of the above
13

________ undergo chemotaxis. They are the predominant phagocytic cell, which removes debris via phagocytosis.
- Eosinophils
- Neutrophils
- Basinophils
- Monocytes/Macrophages
- Natural killer cells
- Platelets
14

Basophils:
- Control inflammatory processes
- Are biochemical mediators
- Secrete chemical chemotactic factors for neutrophils
- Are Chemotactic factors released by neutrophils
15

A complement:
- Is a biochemical cascade that helps clear pathogens from an organism
- Is activated by a cascade of chemical reactions triggered by innate or adaptive mechanisms
- Destroys foreign cells in the body (via Lysis)
- Marks microbes for destruction by phagocytic cells
- All of the above
- None of the above
16

Bradykinin facts:
- Increases vascular permeability
- Low doses causes dilatation of vessels
- Induce chemotaxis of leukocytes
- Extravascular smooth muscle contraction
- Stimulate neutrophils to release lysosomal enzymes
- Induces pain
- All of the above
- None of the above

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Immune system - Immunity (covers more of innate immunity)

Which of the following is present at birth:

______ immunity takes time to recognize specific threatening targets and react to overcome the threat.

Primary cells of innate immunity do not include:

______ (cytokines) are chemicals released from cells to trigger or regulate innate and adaptive immune responses & also participate in innate immunity

When genetic characteristics of a particular type of species provides defence against certain pathogens, it is known as __________ .

Mechanical barriers in the innate immune system's first line of defence include:

Chemical barriers in the innate immune system's first line of defence include:

The body's second line of defense, inflammatory response, is triggered whenever:

Inflammatory response does not do the following:

The following is not a cardinal sign during the inflammatory response:

The chemical histamine:

Margination or pavementing of the leukocytes involve:

________ undergo chemotaxis. They are the predominant phagocytic cell, which removes debris via phagocytosis.

Basophils:

A complement:

Bradykinin facts:

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