Ch 2: Cell Injury, Cell Death, and Adaptations Flashcards

1
Q

define etiology

A

disease origin

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2
Q

what is an immediate cause of disease

A

something that directly causes disease
ex. an infection causes pneumonia

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3
Q

what is a precipitating cause of disease

A

factor that triggers onset of disease
ex. patient aspirates which eventually leads to pneumonia

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4
Q

what is predisposing cause

A

something that predisposes you to disease but is not the immediate cause
ex. patient has dementia and difficulty swallowing

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5
Q

define morphology

A

the gross and microscopic appearance of tissue

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6
Q

define pathogenesis

A

series of steps in the development of disease

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7
Q

define clinical manifestations

A

symptoms or observed signs of diseases

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8
Q

define lesion

A

generic term for any damaged or abnormal change in the tissue

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9
Q

define subclinical disease

A

disease that showed no signs on a clinical exam
rather it is discovered through imaging or accidentally in bloodwork

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10
Q

define morbidity

A

state of having an illness

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11
Q

define the topographic disease classification

A

by body or region
ex. abdominal vs thoracic

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12
Q

define the anatomic disease classification

A

by organ or tissue
ex. heart disease

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13
Q

define the physiological disease classification

A

by function or effect - underlying physical unwellness produced by the disease
ex. metabolic, respiratory

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14
Q

define the pathological disease classification

A

by the nature of the disease process (the type of disease)
ex. inflammatory or neoplastic

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15
Q

define the etiologic disease classification

A

causative agent
ex. organisms that cause certain diseases

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16
Q

define the juristic disease classification

A

legal circumstances regarding death
ex. natural vs sudden death

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17
Q

define the epidemiological disease classification

A

incidence, distribution, and control of disorders within a population
ex. the corona virus epidemic

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18
Q

define the statistical disease classification

A

the number of new cases of a specific disease that occurs during a certain period

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19
Q

define inherited (familial)

A

inherent chromosomal abnormality of one or more parents
ex. dominant or recessive

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20
Q

define autosomal dominant

A

disease that can be caused by only one copy of abnormal genes
ex. huntington disease

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21
Q

define autosomal recessive

A

disease caused by two copies of an abnormal gene
ex. sickle cell anemia and cystic fibrosis

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22
Q

define sex-linked inheritance

A

diseases that occur on sex chromosome
will be expressed if on X gene in males because they only have one X gene
ex. hemophilia

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23
Q

define congenital

A

disorder present at birth

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24
Q

define toxicity

A

various poisons that cause cell degeneration or death

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25
Q

define infectious

A

disease introduced to the body by pathogenic agents (bacteria, fungus, etc.)

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26
Q

define traumatic

A

disease caused by direct physical injury

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27
Q

define degenerative

A

a disease that results from aging or wear and tear

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28
Q

define allergic

A

sensitivity to an antigen

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29
Q

define autoimmune

A

body’s immune system attacks itself

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30
Q

define neoplastic

A

new abnormal growth of cells forming a tumor
ex. benign or malignant

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31
Q

define cachexia

A

extreme weight loss and muscle wasting

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32
Q

define psychosomatic

A

disease which involves both mind and body

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33
Q

define somatoform

A

psychological disorders in which a patient experiences physical symptoms that are inconsistent with medical or neurological condition

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34
Q

define malingering

A

exaggerating or faking illness to escape duty

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35
Q

define factitious

A

mental disorder in which a person acts if they have a physical or mental illness when in fact they have consciously created these symptoms
ex. Münchausen syndrome

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36
Q

define iatrogenic

A

relating to illness caused by medical examination or treatment

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37
Q

define nosocomial

A

disease is acquired in the hospital

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38
Q

define adverse event

A

incident that results in harm to the patient
ex. falls, malnutrition, infection, and pressure injury

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39
Q

define sentinel event

A

event in a healthcare setting which results in patient death, permanent harm, or severe temporary harm

40
Q

define hypertrophy

A

increase in size of cell due to demand

41
Q

define hyperplasia

A

increase in number of cells

42
Q

define atrophy

A

decrease in size or metabolic activity of cell

43
Q

define anlage

A

embryonic area capable of forming a structure (primordial, germ, or bud)

44
Q

define agenesis

A

complete failure of an organ to develop during embryonic growth

45
Q

define aplasia

A

failure of an organ or tissue to develop or function properly

46
Q

define hypoplasia

A

underdevelopment or incomplete development of a tissue or organ

47
Q

define natural history

A

individual course of a disease from onset of symtoms to recovery or death

48
Q

define hypertrophy

A

enlargement of cells in a tissue or organ

*think you want a bigger, shinier trophy

49
Q

define metaplasia

A

transformation of one differentiated cell type to another differentiated cell type
ex. you have pseudostratified columnar epithelium in your lungs but if you smoke, those cells can start to become squamous (squamous metaplasia)

*think at the met gala, they have to get changed into different outfits

50
Q

define dysplasia

A

abnormal development of cells within tissue or organs
considered pre-cancerous (derranged cell growth)

51
Q

define anaplasia

A

poor cellular differentiation
cells lose normal morphological characteristics
considered malignant

*think when someone has ana (anorexia), they loose their normal features

52
Q

what is hypoxia

A

low oxygen delivery to tissue
prevents cells from performing adequate aerobic oxidative respiration
can be caused by ischemia

*pertains to the oxygen itself

53
Q

define ischemia and give some of its causes

A

decreased blood flow through an organ
can be caused by:
decreased arterial perfusion
decreased venous drainage
shock (hypotension)

*pertains to the blood itself

54
Q

what is budd-chiari syndrome

A

decreased hepatic venous outflow
can lead to ischemia

55
Q

what is cellular swelling

A

a type of morphological cell damage that can be reversible
plasma membrane becomes permeable and water enters

56
Q

what is fatty change

A

a type of morphological cell damage that can be reversed
triglycerides start to become stored within vacuoles inside the cell
common in organs like the liver

57
Q

what is increased eosinophilia

A

a type of morphological cell damage that can be reversed
cytoplasm stains more red because the proteins are more denatured and want to bind to eosin

58
Q

what are some intracellular changes associated with cell damage

A

plasma membrane alterations (blebbing)
mitochondrial changes (swelling)
dilation of ER with detachment of ribosomes and polysomes
clumping of chromatin

59
Q

what is steatosis

A

triglyceride accumulation within parenchymal cells
usually found in the liver

60
Q

define xanthomas

A

when fat builds up in the skin

61
Q

define cholesterolosis

A

fat deposits along the inner wall of the gallbladder

62
Q

what is hyaline change

A

alteration within cells that causes the components to have a homogeneous, glassy, pink appearance

63
Q

when would you see glycogen accumulations

A

in patients with either glucose or gylcogen metabolism abnormalities

64
Q

what are exogenous (external) pigments

A

external pigments such as carbon that accumulate within the cells

65
Q

what are endogenous (internal) pigments

A

internal pigments that accumulate within the cells
lipofuscin, hemosiderin, and melanin

66
Q

what is lipofuscin

A

endogenous pigment that is a lipid/protein complex indicative of free radical injury

67
Q

what is hemosiderin

A

yellow-brown pigment derived from hemoglobin (iron)

68
Q

what is calcification

A

abnormal tissue deposition of calcium salts with small amounts of iron, magnesium, and other mineral salts
two types: dystrophic calcification of necrotic tissue and metastatic calcification of normal tissue

69
Q

what is dystrophic calcification

A

calcification of necrotic tissue
many layers become psammoma bodies
ex. atheroma in atherosclerosis

70
Q

what is metastatic calcification

A

calcifications of normal tissue
caused by hypercalacemia (excess blood calcium levels)
uncommon, typically found in the thyroid

71
Q

define necrosis

A

denaturization of cellular proteins, leakage of cellular contents through damaged membranes, local inflammation, and enzymatic digestion
much less organized than apoptosis and is a consequence of severe injury
characterized by loss of nucleus

72
Q

what is pyknosis

A

shrinkage and increased basophilia of nucleus
seen in necrosis

73
Q

what is karyorrhexis

A

fragmentation of nucleus seen in necrosis

74
Q

what is karyolysis

A

nuclear breakdown and pallor due to digestion of DNA
nucleus appears to be fading under the microscope
seen in necrosis

75
Q

what are myelin figures

A

what’s leftover after cell necrosis
phospholipid masses

76
Q

what is coagulative necrosis

A

architecture of dead tissue reamins first but the nucleus disappears
seen in all organs except for the brain

77
Q

what is liquefactive necrosis

A

digestion of dead cells leads to liquification of tissues
often occurs in the brain

78
Q

what is gangrenous necrosis

A

typically occurs in a limb and resembles mummified tissue
dry: mummified tissue
wet: infection of dead tissue

79
Q

what is caseous necrosis

A

cheese-like appearence associated with tuberculosis
surrounded by granular inflammation
combination of coagulative and liquefactive necrosis

80
Q

where would you find a Langhans giant cell

A

only in active TB cases

81
Q

what is fat necrosis

A

fat is destroyed
lipases or fatty acids are released due to trauma and combine with calcium to leave a chalky-white appearance

82
Q

what is saponification

A

when hydrolyzed fats join with calcium

83
Q

what is fibrinoid necrosis

A

vascular damage usually seen in immune reactions
antigens and antibodies are depositied in the walls of arteries

84
Q

what is apoptosis

A

planned cell death that does not cause inflammation
ex. killing off excess leukocytes during an immune reponse

84
Q

what is autophagy

A

self eating
when lysosomes digest its own cell’s components
survival mechanism typically seen in stressors such as nutrient deprivation

85
Q

define mortality

A

related to an individual’s risk of death

86
Q

define co-morbidity

A

multiple disorders occuring in the same person

87
Q

what were the top three leading causes of death in the 1900’s

A

pneumonia, TB, and diarrhea

88
Q

what were the top 3 leading causes of death in 1997

A

heart disease, cancer, and stroke

89
Q

what were the top 3 leading causes of death in 2020

A

heart disease, cancer, and COVID

90
Q

what caused the most drug deaths in 2020 and 2021

A

synthetic opiods like fentanyl

91
Q

what were the top three leading sites of new cancer cases in males and females in 2022 (morbitity)

A

males: prostate, lung, and colon
female: breast, lung, and colon

92
Q

what were the top four leading sites of cancer related deaths in males and females (morbidity)

A

males: lung, prostate, colon, pancreas
female: lung, breast, colon, pancreas

93
Q

define cause of death

A

the official determination of conditions resulting in a human’s death recorded on the death certificate
ex. gunshot wound to the chest

94
Q

define the mechanism of death

A

immediate physiological derangment or chemical changes that result in death
ex. exsanguination (extreme blood loss) from the gunshot

95
Q

define the manner of death

A

how the death came about
ex. natural, homicide, suicide, etc.