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Medical Terminology > Chp. 3 - Essential Prefixes and More > Flashcards

Chp. 3 - Essential Prefixes and More Flashcards

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USMLE® Step 1 flashcards
1
Q

mono-, uni-

A

one

Ex: Monocular, Unicycle

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2
Q

bi-, di-

A

two

Ex: Bicycle, Dioxide

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3
Q

tri-

A

three

Ex: Tricycle

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4
Q

quad-, quadri-, tetra-

A

four

Ex: Quadruplets, Quadriplegia, Tetrahedron

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5
Q

centi-

A

one hundred, one-hundredth

Ex: Centigrade, Centimeter

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6
Q

milli-

A

one-thousandth

Ex: Millimeter

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7
Q

diplo-

A

double

Ex: Diplopia

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8
Q

hemi-, semi-

A

half, partly

Ex: Hemisphere, Semipermeable

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9
Q

hyper-

A

excessive, more than normal

Ex: Hyperglycemia

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10
Q

hypo-

A

under, less than normal

Ex: Hypoglycemia

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11
Q

multi-, poly-

A

many

Ex: Multipurpose, Polysaccharides

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12
Q

nulli-

A

none

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13
Q

pan-

A

all

Ex: Pandemic

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14
Q

primi-

A

first

Ex: Primary

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15
Q

ab-

A

away from

Ex: Abduction

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16
Q

ad-

A

toward

Ex: Adduction

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17
Q

ante-, pre-, pro-

A

before in time or in place

Ex: Anteroom, Prerenal

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18
Q

circum-, peri-

A

around

Ex: Circumference, Perimeter

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19
Q

contra-

A

against or opposed

Ex: Contralateral

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20
Q

dia-

A

through

Ex: Diameter

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21
Q

ecto-, ex-, exo-, extra-

A

outside, without, away from

Ex: Export, Exoskeleton, Extranuclear

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22
Q

en-, end-, endo-

A

inside

Ex: Enclose, Endotracheal

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23
Q

epi-

A

above, on

Ex: Epitaph (on tombstone)

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24
Q

hypo-, infra-, sub-

A

beneath, under

Ex: Hypodermic, Subcutaneous

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25
Q

inter-

A

between

Ex: Interval

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26
Q

intra-

A

within

Ex: Intramuscular, Intradermal, Intravenous

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27
Q

ipsi-

A

same

Ex: Ipsilateral

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28
Q

meso-, mid-

A

middle

Ex: Mesoderm

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29
Q

para-

A

near, beside, or abnormal

Ex: Parallel

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30
Q

per-

A

through or by

Ex: Perspire, Permeable

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31
Q

post-

A

after, behind

Ex: Postnasal

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32
Q

retro-

A

behind, backward

Ex: Retrospection

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33
Q

super-, supra-

A

above, beyond

Ex: Superficial, Suprarenal

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34
Q

sym-, syn-

A

joined, together

Ex: Syndrome

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35
Q

trans-

A

across

Ex: Transdermal

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36
Q

Subcutaneous Injection

A

placing a small amount of medication (0.5-2mL) below the skin layer into the subcutaneous tissue. Needle is inserted at a 45-degree angle

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37
Q

Intramuscular Injection

A

deposits medication into a muscular layer. 3-5mL may be administered in one injection. 1-3 inch long needle is used depending on the size of the patient

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38
Q

Intradermal Injection

A

placing very small amounts of medication into the outer layers of the skin with a short, fine-gauge needle. Often used to test allergic reactions

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39
Q

Intravenous Injection

A

used to administer medications directly into the bloodstream for immediate effect. A few millimeters of medication, or much larger amounts given over a long period may be administered

40
Q

anti-, contra-

A

against

Ex: Antiperspirant, Contraceptive

41
Q

brady-

A

slow

Ex: Bradycardia

42
Q

dys-

A

bad, difficult, disordered

Ex: Dyslexia

43
Q

eu-

A

good, normal

Ex: Euthanasia

44
Q

mal-

A

bad, abnormal

Ex: Maladjusted

45
Q

pro-

A

favoring, supporting

Ex: Prolong

46
Q

tachy-

A

fast

Ex: Tachycardia

47
Q

macro-, mega-, megalo-

A

large, great

Ex: Macroscopic, Megadose, Megalomania

48
Q

micro-

A

small

Ex: Microscope

49
Q

a-, an-

A

no, not, without

Ex: Asymptomatic, Anesthesia

50
Q

in-

A

not or inside (in)

Ex: Inconsistent, Inhale

51
Q

non-

A

not

Ex: Noncancerous

52
Q

alb/o, albin/o, leuk/o

A

white

Ex: Albino, Leukocyte

53
Q

chlor/o

A

green

Ex: Chlorophyll

54
Q

cyan/o

A

blue

Ex: Cyanosis

55
Q

erythr/o

A

red

Ex: Erythrocyte

56
Q

melan/o

A

black

Ex: Melanoma

57
Q

xanth/o

A

yellow

Ex: Xanthophyll, Jaundice

58
Q

Combining Form - cyt/o

A

cell

Suffix: -cyte

59
Q

Combining Form - gen/o

A

beginning, origin (sometimes genes) produced by or in producing or forming

Suffixes: -genic, -genesis

60
Q

Combining Form - gram/o

A

to record, a record, instrument for recording, process of recording

Suffixes: -gram, -graph, -graphy

61
Q

Combining Form - kinesi/o

A

movement, motion

Suffixes: -kinesia, -kinesis

62
Q

Combining Form - leps/o

A

seizure

Suffix: -lepsy

63
Q

Combining Form - lys/o

A

destruction, dissolving that which destroys, process of destroying, capable of or producing destruction

Suffixes: -lysin, -lysis, -lytic

64
Q

Combining Form - malac/o

A

soft, softening, abnormal softening

Suffix: -malacia

65
Q

Combining Form - megal/o

A

large, enlarged, enlargement

Suffix: -megaly

66
Q

Combining Form - metr/o

A

measure, uterine tissue, instrument used to measure, process of measuring

Suffixes: -meter, -metry

67
Q

Combining Form - path/o

A

disease

Suffix: -pathy

68
Q

Combining Form - phag/o

A

eat, ingest, eating, swallowing

Suffixes: -phagia, -phagic, -phagy

69
Q

Combining Form - phas/o

A

speech

Suffix: -phasia

70
Q

Combining Form - pleg/o

A

paralysis

Suffix: -plegia

71
Q

Combining Form - schis/o, schiz/o, schist/o

A

split, cleft

Suffix: -schisis

72
Q

Combining Form - scler/o

A

hard, hardening

Suffix: -sclerosis

73
Q

Combining Form - scop/o

A

to examine, to view, instrument used for viewing, process of examining visually

Suffixes: -scope, -scopy

74
Q

Combining Form - troph/o

A

nutrition

Suffixes: -trophic, -trophy

75
Q

Combining Form - aer/o

A

air

Ex: Aeroplane, Aerobic

76
Q

Combining Form - blast/o

A

embryonic form

Ex: Osteoblasts

77
Q

Combining Form - cancer/o, carcin/o

A

cancer

Ex: Carcinoma

78
Q

Combining Form - cephal/o

A

head

Ex: Cephalic

79
Q

Combining Form - cry/o

A

cold

Ex: Cryotherapy

80
Q

Combining Form - crypt/o

A

hidden

Ex: Cryptic, Cryptogram

81
Q

Combining Form - dips/o

A

thirst

Ex: Polydipsia

82
Q

Combining Form - electr/o

A

electricity

83
Q

Combining Form - fibr/o

A

fiber

Ex: Fibrous

84
Q

Combining Form - hist/o

A

tissue

Ex: Histology, Histocompatibility

85
Q

Combining Form - myc/o

A

fungus

Ex: Mycology

86
Q

Combining Form - narc/o

A

stupor

Ex: Narcotics

87
Q

Combining Form - necr/o

A

dead

Ex: Necrosis

88
Q

Combining Form - optic/o, opt/o

A

vision

Ex: Optical, Optometrist

89
Q

Combining Form - phon/o

A

voice

90
Q

Combining Form - phot/o

A

light

Ex: Photography, Photosynthesis

91
Q

Combining Form - py/o

A

pus

Ex: Pyogenic

92
Q

Combining Form - therm/o

A

heat

Ex: Thermal

93
Q

Combining Form - top/o

A

position, place

Ex: Topography

94
Q

Pyrogen

A

any substance that produces fever

95
Q

super-, ultra-

A

excessive

Ex: Supervitaminosis

Medical Terminology (5 decks)

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