Quiz 3 Flashcards

(38 cards)

1
Q

Abscess

A

A localized accumulation of pus that develops at a focus when an agent of injury cannot be quickly neutralize

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2
Q

Cellulitis

A

Diffuse supportive inflammation

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3
Q

Empyema

A

Plus in two areas: pleural and subdural

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4
Q

Pleural empyema

A

Accumulation of pus in the pleural cavity

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5
Q

Subdural empyema

A

Plus between arachnoid and Dura mater. Closed space. Can go into the sub arachnoid space to spread everywhere. High mortality rate.

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6
Q

Hemorrhagic inflammation

A

Inflammation associated with the movement of white blood cells to the tissues. Red blood cells move into the tissues as well but not associated with inflammation

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7
Q

Cellular component

A

Cells move into the site of inflammation from the blood vessels

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8
Q

Leukocyte emigration

A

Outpouring of large amount of white blood cells from the blood.
* associated with injury

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9
Q

Axial blood flow

A

Fluid that flows into ways. Laminar fluid flow and turbulent flow.
* blood flows through the vessels smooth and friction free

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10
Q

Laminar fluid flow

A

Flow parallel to each other

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11
Q

Turbulent flow

A

Absence or disruption of parallel flow of various layers of the s

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12
Q

Margination

A

Peripheral position of white blood cells near the vascular endothelium
* next step, epithelia cells become sticky and stops the motion of white blood cells

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13
Q

Pavementing

A

Of the leukocytes is there adherence to the endothelial cell surface

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14
Q

Leukocyte emigration

A

Cell membrane floats away and the white blood cells appears outside the blood vessel. Get outside only post capillary Venules

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15
Q

Diapedesis

A

Passive escape for red blood cells into site of inflammation.
-Leukocyte emigration, Active escape of the white blood cells into site of inflammation

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16
Q

Neutrophils

A

Most common, majority of white blood cells. 2 to 5 lobes, 50 to 60% of all white blood cells
First line of defense against inflammation. They peak at 12 hours and declined to 0 at 24 hours
Short lifespan eight hours to three days - never involved when inflammation is chronic
Participate in killing bacteria

17
Q

Eosinophils

A

Two nucleus, granules with the red/pink color

18
Q

Basophils

A

Very rare, close to eosinophils granules with dark purple color, two lobes nucleus

19
Q

Lymphocytes

A

One nucleus, no granules under light microscope

20
Q

Monocytes

A

Largest cells of blood cells, one lobe, no granules
4 to 8% in the blood
Life span up to 30 days
Can stay in tissue when inflammation is chronic
Once in tissue monocyte turns to macrophage

21
Q

Polymorphonuclear cells

A

More than one lobe nuclei. Associated with the Phils of white blood cells

22
Q

Granulocytes

A

Cells containing granules. Associate with the Phil’s of the white blood cells

23
Q

Mononuclear cells

A

Only have one nucleus associate with the cytes of WBCs

24
Q

Agranulocyte

A

Cells without granules associated with the cytes of WBCs

25
Which white blood cells go out of the blood vessel and into the tissues?
Neutrophils and monocytes
26
Macrophage
Known as antigen presenting cells | Victims of HIV virus
27
Phagocytosis
Engulf and eliminate
28
Chemotaxis
Something in the blood attracts the cells to the intruders Step one of phagocytosis Step two is engulfment
29
Ingestion
Release of enzymes through lysosomes which try to digest the intruder or divide into fragment Step three of phagocytosis
30
Exocytosis
Removes the intruder
31
Phagocytic cells
First cells that go to site of infection first. Neutrophils, monocyte/macrophages, eosinophils
32
Oxygen independent mechanisms
Enzymes in the cells that digest intruders, lysozyme, elastase, and collagenase
33
Defensin
Antibiotic like substance produced by some cells (only neutrophils produce these)
34
Oxygen dependent mechanisms
Free radicals Can lead to oxygenation of cell membranes which can lead to destruction Free oxygen which is damaging Superoxide anion, hypochlorite anion
35
Superoxide anion
Free oxygen one charge
36
Hypochlorite anion
Disinfection of H2O and pools
37
Hydrogen peroxide
Release free 02, uses surgery military surgery, kills bacteria in Wounds, pushes tissue debris outside by the bubbling of O2 Can be used to lighten hair
38
Pus
Formation of specific exudate. Source of infection