Immune System Flashcards

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1
Q

a disease causing agent such as bacteria, virus and fungi is called_____

A

pathogen

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2
Q

skin, mucus, and sweat act as the ___ line of defense in your immune system.

A

1st

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3
Q

Nonspecific responses are also known as_____ immunity because it’s something everyone is born with.

A

innate

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4
Q

If the pathogen gets past the nonspecific response or the first line of defense, then the body launches the -___ immune response or the second line of defense.

A

specific

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5
Q

-Histamine being released
- capillaries expanding
-release of platelets and WBC are all part of the _____ repsonse.

A

inflammatory

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6
Q

What chemical is released at the injured site to trigger the inflammatory response?

A

histamine

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7
Q

What type of white blood cells are released during the inflammatory response that eats pathogens?

A

phagocytes

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8
Q

The specific immune response is also known as the 2nd line of defense or ____ immunity

A

acquired

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9
Q

The specific immune response or the ____ line of defense includes
Helper T cells
Killer T cells
Plasma B cells
Memory B cells
Antibodies

A

2nd

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10
Q

What do you call proteins found on the surface of pathogens (viruses and bacteria)?

A

Antigens

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11
Q

When your immune system recognizes a foreign antigen or proteins on the surface of a pathogen, it forms specific_____ (known as biological handcuffs)

A

antibodies

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12
Q

Killer T Cells, B cells and antibodies are all part of the _____ line of defense.

A

2nd

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13
Q

What type of WBC does the HIV destroy in your body?

A

Helper T cells

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14
Q

People who are HIV positive usually die from _____ infections like the cold or flue because the immune system is weakened.

A

secondary

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15
Q

____ contains the antigen of a weakened pathogen, which triggers your immune system to make antibodies and allows your immune system to respond quickly to the real virus.

A

Vaccines

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16
Q

Which type of cell produces antibodies?

A

Plasma B cells

17
Q

Which type of cell activates other lymphocytes (killer T cells and B cells)?

A

Helper T Cells

18
Q

Antibodies are also known as “____ _____” because they bind to antigens of viruses and make them immovable.

A

Biological handcuffs

19
Q

Which is one way HIV can be transmitted?

A

-breastfeeding
- exchanging fluids through sex and sharing needles
- during birth

20
Q

Your immune response to secondary exposure of a pathogen is very (slow/fast) because your body already has antibodies and memory B and T cells against the pathogen.

A

fast