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A&P II > 5.2 Physiology of the Lymphatic System and Immunology Part 4 > Flashcards

5.2 Physiology of the Lymphatic System and Immunology Part 4 Flashcards

1
Q

What do lymphocytes look like under the microscope?

A

large dark nucleus and little cytoplasm

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2
Q

What are B cells?

A

bone marrow derived cells

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3
Q

What is the B cells function?

A

its glycoprotein receptor will bind to a specific type of antigen

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4
Q

What is an antigen?

A

any molecule that can be specifically recognized as foreign by the immune system

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5
Q

When are B cells activated?

A

when an antigen binds to its receptor

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6
Q

What is a B cell called when it is activated?

A

plasma cell

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7
Q

What happens once a B cell is activated?

A

begins to rapidly devide and produces antibodies

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8
Q

What are antibodies known as?

A

immunoglobulins

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9
Q

What is an antibody?

A

soluble form of the glycoprotein receptor from the B cells surface

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10
Q

What are the categories of immunoglobulins?

A

IgG
IgE
IgD
IgM
IgA

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11
Q

What is the purpose of the antibody?

A

bind to the antigen to mark it as foreign and ready for destruction

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12
Q

What are memory B cells?

A

B cells that continue to produce a small amount of antibody even after the infection is over

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13
Q

What is the benefit of memory B cells?

A

produce a specific antibody much faster when a pathogen reenters the body

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14
Q

What is the humoral response?

A

antibody-mediated immunity

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15
Q

What are T cells?

A

thymus dependent cells

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16
Q

Where do T cells originate?

A

bone marrow

17
Q

Where do T cells mature?

A

thymus

18
Q

What is cell mediated immunity?

A

locally released contents such as enzymes and cytokines to kill a pathogen or infected cell

19
Q

What do T cells contain?

A

antigen receptors that bind to specific gylcoproteins in cell membranes

20
Q

What are killer T cells also known as?

A

cytotocix T cells

A&P II (95 decks)

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