Terms Flashcards

1
Q

Epidemiology

A

Study of cause, patterns and effects of disease and health conditions in a given population

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2
Q

Pathophysiology

A

How disease processes work to cause dysfunction in the body

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3
Q

Pathogenesis

A

Mechanism that cause disease

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4
Q

Congential

A

Something born with, and that is present at birth. (ex: Down Syndrome; birthmark).

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5
Q

Neoplasm

A

“New growth.” Uncontrolled growth of an abnormal cell line. May be benign or malignant.

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6
Q

Psychosomatic

A

Condition aggravated by mental condition.

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7
Q

Latrogenic

A

Illness caused by medical provider or treatment.

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8
Q

Idiopathic

A

Disease or condition with cause unknown.

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9
Q

Organic

A

Arising from one’s own body

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10
Q

Prodrome

A

Early symptom that may be indicative of the start of disease

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11
Q

Subacute

A

between acute and chronic

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12
Q

Subclinical

A

Disease that has yet to manifest into any clinical symptoms

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13
Q

Sequela (sequelae)

A

Condition that is the consequence of a previous disease or injury (ex: kidney disease can be a sequela of diabetes).

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14
Q

Endogenous

A

Produced or originating within an organism

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15
Q

Exogenous

A

Originating outside the organism

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16
Q

Steady State

A

Homeostasis for specific mechanism (does not have to have zero net change like equilibrium). (Ex: Na/K pump, maintains constant internal concentration of K. K is therefore in a steady state).

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17
Q

Diffusion

A

Molecular movement across membrane from area of higher [ ] to lower [ ] via protein channel. No energy required.

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18
Q

Facilitated diffusion

A

Molecular binding to transporter protein, results in change in shape that passes molecule in/out of cell via diffusion. No energy required.

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19
Q

Primary active transport

A

Molecular mov’t “upstream” against [ ] gradient. Energy required

20
Q

Secondary active transport

A

[ ] gradients enhanced by primary active transporters moving other molecules (besides primary active transported) against gradient.

21
Q

Osmosis

A

Diffusion of H2O molecules across membrane. Follow [ ] gradient

22
Q

Hyperosmotic

A

Cell volume decreases due to water leaving cell for extracellular space

23
Q

Hypoosmotic

A

Cell volume increases due to water entering cell from extracellular space

24
Q

Reversible cell injury

A

Cells are able to adapt to, and accommodate stressors

25
Q

Irreversible cell injury

A

Cells are unable to adapt to stressors.

26
Q

Atrophy

A

Decrease in size or number of cells

27
Q

Hypertrophy

A

Enlargement due to size of cell

28
Q

Hyperplasia

A

Enlargement due to increase in number of cells

29
Q

Metaplasia

A

Change in cell type from one to another (often from normal to abnormal)

30
Q

Dysplasia

A

Abnormal change in size, shape and organization of mature tissue

31
Q

Anaplasia

A

Reversion of cells to immature/less differentiated form (occurs in most malignant tumors).

32
Q

Exudate

A

Inflammatory extravascular fluid. High specific gravity >1.020

33
Q

Exudation

A

Escape of fluid, proteins and blood cells from vascular system into interstitial tissue

34
Q

Transudate

A

Ultrafiltrate of plasma resulting from hydrostatic imbalance across vascular endothelium. Low specific gravity <1.012

35
Q

Transudation

A

Processes by which transudate is “pushed” across endothelium

36
Q

Sequence of changes in vascular flow associated with acute inflammation

A

1) Brief, initial vasoconstriction
2) Vasodilation
3) Increased mean cap. pressure
4) Exudation into interstium
5) Vascular permeability increases

37
Q

Primary Intention

A

Wound closure in which two clean edges. Closes well. Low infection risk, best scaring results.

38
Q

Secondary Intention

A

Wound is left to heal from outside edges in.

39
Q

Tertiary Intention

A

Delayed primary closure. Wound left open until greatest infection likelihood has passed. Then closed.

40
Q

Inflammation

A

Body response to injury by containing/isolating the area, destroying the invading microorganism, inactivating toxins.

41
Q

Cardinal signs of inflammation

A

Calor, rubor, tumor, dolor, function laesa

42
Q

Stages of wound healing

A

Epithlialization, collagen synthesis, scar maturation

43
Q

General causes of cellular injury

A

“Please Give Our Cells No Irreversible Injury.”

-Physical. Genetic. Oxygenation. Chemical. Nutritional. Infectious. Immunological.

44
Q

Endocytosis

A

Regions of plasma membrane invaginate and pinch off to form vesicles (brings a small amount of extracellular material into cell).

45
Q

Exocytosis

A

Intracellular vesicles fuse with plasma membrane releasing contents into extracellular fluid

46
Q

Chemotaxis

A

Chemical gradients that attract WBCs to site of inflammation.