Non-specific immune defences Flashcards

1
Q

Keep pathogens outside of body (e.g. skin) Hint: Barriers

A

Physical Barriers

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2
Q

Name the cells that engulf pathogens and cell debris?

A

Phagocytes

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3
Q

Carried out by NK cells that destroy abnormal cells?

A

Immunological surveillance

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4
Q

Chemical messengers that coordinate the defences against viral infections are called what?

A

Interferons

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5
Q

a system of circulating proteins that assist antibodies in the destruction of pathogens is called what?

A

Complement

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6
Q

This is localised to the site of damage and limits the spread of infection or injury. What am i?

A

Inflammatory response

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7
Q

What accelerates tissue metabolism and the activity of defences?

A

A fever

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8
Q

What cells are responsible for immunological surveillance?

A

NK cells

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9
Q

Provides a physical barrier/.

A

Integumentary system

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10
Q

What type of cells are Neutrophils, eosinophils & macrophages

A

Phagocytes

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11
Q

Phagocyte, found in blood that phagocytosis cellular debris or invading bacteria?

A

Neutrophil

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12
Q

Phagocyte found in blood phagocytes pathogens that are coated with antibodies?

A

Eosinophils

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13
Q

Phagocytes that are permanently in specific tissues?

A

Fixed macrophages

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14
Q

Phagocytes that travel through the body,a arriving at the site of an injury by migrating through adjacent tissues:

A

Free macrophages

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15
Q

The term when phagocytes leave capillaries by squeezing between adjacent endothelial cells?

A

Diapedesis

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16
Q

The term where Phagocytes may be attracted to or repelled by chemicals in surrounding fluid?

A

Chemotaxis

17
Q

Protein made by NK cells to create pores in target cells are called what?

A

Perforins

18
Q

The usual component in plasma membranes of target cells that NK cells recognise?

A

Tumour specific antigen

19
Q

The constant monitoring of normal tissues by NK cells

A

Immunological surveillance

20
Q

These small proteins are released by activated lymphocytes and macrophages that binds to receptors and via second messengers trigger the production of antiviral proteins?

A

Interferon’s

21
Q

These 11 proteins that interact with each other in chain reaction to produce activated forms that target bacterial cell walls and plasma membranes, stimulate inflammation, attract phagocytes or enhance phagocytes?

A

Complement proteins

22
Q

Is the erythrocytes a white blood cell?

A

No

23
Q

What is the most abundant white blood cell?

A

Neutrophil