Blood tissue and Immunity Flashcards

1
Q

What is the normal WBC count?

A

5,000-10,000 cells/mm3

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2
Q

What are granulocytes?

A

Polymorphonuclear cells that contain granules of digestive enzymes

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3
Q

Neutrophils

A

phagocytes

granulocyte

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4
Q

Eosinophils

A

allergic reaction

granulocyte

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5
Q

Basophils

A

heparin and histamine

granulocyte

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6
Q

What are agranulocytes?

A

Mononuclear cells that lack digestive enzymes.

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7
Q

Monocytes

A

Scavenger cells

Agranulocyte

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8
Q

Lymphocytes

A

T cells - synthesis of Igs

B cells - synthesis of antibodies

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9
Q

What cell is responsible for cellular immunity?

A

T-lymphocytes - enter lympoid tissue and seek out microbe

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10
Q

What is responsible for humoral immunity?

A

B lymphocytes - produce antibodies

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11
Q

Sepsis

A

systemic inflammatory response to infection

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12
Q

What is systemic inflammatory response syndrome?

A

Early presenting symptoms of sepsis
Body temp >38C or <36C
Heart rate >90 BPM
Respiratory rate >20 BPM
WBCs >12,000, <4,000, or >10% immature forms
- Neutrophil count <2,000/mm3 is associated with cancer

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13
Q

Progress of an infection

A

Incubation
Prodromal
Acute phase
Convalescent

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14
Q

What are phases of a febrile episode?

A

Chill - body tries to increase core temp; pt is cold
Fever - fever reaches the higher set point
Flush - pt experiences diaphoresis (sweating)

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